25766596361 has 16 divisors (see below), whose sum is σ = 28376880000. Its totient is φ = 23201856000.

The previous prime is 25766596351. The next prime is 25766596459. The reversal of 25766596361 is 16369566752.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25766596361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25766596297 and 25766596306.

It is not an unprimeable number, because it can be changed into a prime (25766596321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 557465 + ... + 601913.

It is an arithmetic number, because the mean of its divisors is an integer number (1773555000).

Almost surely, 2^25766596361 is an apocalyptic number.

It is an amenable number.

25766596361 is a deficient number, since it is larger than the sum of its proper divisors (2610283639).

25766596361 is a wasteful number, since it uses less digits than its factorization.

25766596361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44960.

The product of its digits is 12247200, while the sum is 56.

The spelling of 25766596361 in words is "twenty-five billion, seven hundred sixty-six million, five hundred ninety-six thousand, three hundred sixty-one".