2381407598761 has 3 divisors (see below), whose sum is σ = 2381409141943. Its totient is φ = 2381406055580.

The previous prime is 2381407598753. The next prime is 2381407598851. The reversal of 2381407598761 is 1678957041832.

The square root of 2381407598761 is 1543181.

It is a perfect power (a square), and thus also a powerful number.

2381407598761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2271859838361 + 109547760400 = 1507269^2 + 330980^2 .

It is not a de Polignac number, because 2381407598761 - 2³ = 2381407598753 is a prime.

It is a super-2 number, since 2×2381407598761² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2381407598761.

It is not an unprimeable number, because it can be changed into a prime (2381407592761) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 771591 + ... + 2314771.

It is a 1-persistent number, because it is pandigital, but 2⋅2381407598761 = 4762815197522 is not.

Almost surely, 2^{2381407598761} is an apocalyptic number.

2381407598761 is the 1543181-st square number.

2381407598761 is the 771591-st centered octagonal number.

It is an amenable number.

2381407598761 is a deficient number, since it is larger than the sum of its proper divisors (1543182).

2381407598761 is an frugal number, since it uses more digits than its factorization.

2381407598761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086362 (or 1543181 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 61.

The spelling of 2381407598761 in words is "two trillion, three hundred eighty-one billion, four hundred seven million, five hundred ninety-eight thousand, seven hundred sixty-one".