25979749539366 has 96 divisors (see below), whose sum is σ = 63318270274560. Its totient is φ = 6959616256512.

The previous prime is 25979749539319. The next prime is 25979749539379. The reversal of 25979749539366 is 66393594797952.

It is a super-2 number, since 2×25979749539366² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7361646 + ... + 10303073.

It is an arithmetic number, because the mean of its divisors is an integer number (659565315360).

Almost surely, 2^{25979749539366} is an apocalyptic number.

25979749539366 is an abundant number, since it is smaller than the sum of its proper divisors (37338520735194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25979749539366 is a wasteful number, since it uses less digits than its factorization.

25979749539366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17664866 (or 17664847 counting only the distinct ones).

The product of its digits is 20832487200, while the sum is 84.

The spelling of 25979749539366 in words is "twenty-five trillion, nine hundred seventy-nine billion, seven hundred forty-nine million, five hundred thirty-nine thousand, three hundred sixty-six".