25971444285696 has 432 divisors, whose sum is σ = 93724677621120. Its totient is φ = 6733513359360.

The previous prime is 25971444285671. The next prime is 25971444285739. The reversal of 25971444285696 is 69658244417952.

25971444285696 is a `hidden beast` number, since 2 + 5 + 9 + 7 + 14 + 4 + 42 + 8 + 569 + 6 = 666.

It is a super-2 number, since 2×25971444285696² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11320416 + ... + 13419936.

Almost surely, 2^{25971444285696} is an apocalyptic number.

25971444285696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25971444285696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46862338810560).

25971444285696 is an abundant number, since it is smaller than the sum of its proper divisors (67753233335424).

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

25971444285696 is a wasteful number, since it uses less digits than its factorization.

25971444285696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099622 (or 2099605 counting only the distinct ones).

The product of its digits is 1045094400, while the sum is 72.

The spelling of 25971444285696 in words is "twenty-five trillion, nine hundred seventy-one billion, four hundred forty-four million, two hundred eighty-five thousand, six hundred ninety-six".