25127657086 has 32 divisors (see below), whose sum is σ = 45226506240. Its totient is φ = 10242451296.

The previous prime is 25127657063. The next prime is 25127657099. The reversal of 25127657086 is 68075672152.

It is a happy number.

It is a super-2 number, since 2×25127657086² (a number of 22 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 15 ways as a sum of consecutive naturals, for example, 434670 + ... + 489073.

It is an arithmetic number, because the mean of its divisors is an integer number (1413328320).

Almost surely, 2^25127657086 is an apocalyptic number.

25127657086 is a deficient number, since it is larger than the sum of its proper divisors (20098849154).

25127657086 is a wasteful number, since it uses less digits than its factorization.

25127657086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923848.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 25127657086 in words is "twenty-five billion, one hundred twenty-seven million, six hundred fifty-seven thousand, eighty-six".