25949796836 has 12 divisors (see below), whose sum is σ = 45451607040. Its totient is φ = 12963623400.

The previous prime is 25949796823. The next prime is 25949796841. The reversal of 25949796836 is 63869794952.

It is a super-3 number, since 3×25949796836³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2813576 + ... + 2822783.

It is an arithmetic number, because the mean of its divisors is an integer number (3787633920).

Almost surely, 2^25949796836 is an apocalyptic number.

It is an amenable number.

25949796836 is a deficient number, since it is larger than the sum of its proper divisors (19501810204).

25949796836 is a wasteful number, since it uses less digits than its factorization.

25949796836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5637514 (or 5637512 counting only the distinct ones).

The product of its digits is 176359680, while the sum is 68.

The spelling of 25949796836 in words is "twenty-five billion, nine hundred forty-nine million, seven hundred ninety-six thousand, eight hundred thirty-six".