25716127436765 has 16 divisors (see below), whose sum is σ = 30865904280000. Its totient is φ = 20568534911232.

The previous prime is 25716127436737. The next prime is 25716127436807. The reversal of 25716127436765 is 56763472161752.

It is a cyclic number.

It is not a de Polignac number, because 25716127436765 - 2²⁴ = 25716110659549 is a prime.

It is a super-2 number, since 2×25716127436765² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25716127436698 and 25716127436707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575295386 + ... + 575340084.

It is an arithmetic number, because the mean of its divisors is an integer number (1929119017500).

Almost surely, 2^{25716127436765} is an apocalyptic number.

It is an amenable number.

25716127436765 is a deficient number, since it is larger than the sum of its proper divisors (5149776843235).

25716127436765 is a wasteful number, since it uses less digits than its factorization.

25716127436765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66556.

The product of its digits is 88905600, while the sum is 62.

The spelling of 25716127436765 in words is "twenty-five trillion, seven hundred sixteen billion, one hundred twenty-seven million, four hundred thirty-six thousand, seven hundred sixty-five".