2563361235361 has 4 divisors (see below), whose sum is σ = 2566475891392. Its totient is φ = 2560246579332.

The previous prime is 2563361235359. The next prime is 2563361235509. The reversal of 2563361235361 is 1635321633652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2563361235361 - 2¹ = 2563361235359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563361235301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1557326781 + ... + 1557328426.

It is an arithmetic number, because the mean of its divisors is an integer number (641618972848).

Almost surely, 2^{2563361235361} is an apocalyptic number.

It is an amenable number.

2563361235361 is a deficient number, since it is larger than the sum of its proper divisors (3114656031).

2563361235361 is an equidigital number, since it uses as much as digits as its factorization.

2563361235361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114656030.

The product of its digits is 1749600, while the sum is 46.

The spelling of 2563361235361 in words is "two trillion, five hundred sixty-three billion, three hundred sixty-one million, two hundred thirty-five thousand, three hundred sixty-one".