5144653615261 has 4 divisors (see below), whose sum is σ = 5241722551452. Its totient is φ = 5047584679072.

The previous prime is 5144653615253. The next prime is 5144653615273. The reversal of 5144653615261 is 1625163564415.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2879571424900 + 2265082190361 = 1696930^2 + 1505019^2 .

It is a cyclic number.

It is not a de Polignac number, because 5144653615261 - 2³ = 5144653615253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5144653615561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48534468016 + ... + 48534468121.

It is an arithmetic number, because the mean of its divisors is an integer number (1310430637863).

Almost surely, 2^{5144653615261} is an apocalyptic number.

It is an amenable number.

5144653615261 is a deficient number, since it is larger than the sum of its proper divisors (97068936191).

5144653615261 is an equidigital number, since it uses as much as digits as its factorization.

5144653615261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97068936190.

The product of its digits is 2592000, while the sum is 49.

The spelling of 5144653615261 in words is "five trillion, one hundred forty-four billion, six hundred fifty-three million, six hundred fifteen thousand, two hundred sixty-one".