25634148916 has 12 divisors (see below), whose sum is σ = 44989041888. Its totient is φ = 12780136952.

The previous prime is 25634148913. The next prime is 25634148923. The reversal of 25634148916 is 61984143652.

It is a super-3 number, since 3×25634148916³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25634148916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25634148913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9232816 + ... + 9235591.

It is an arithmetic number, because the mean of its divisors is an integer number (3749086824).

Almost surely, 2^25634148916 is an apocalyptic number.

It is an amenable number.

25634148916 is a deficient number, since it is larger than the sum of its proper divisors (19354892972).

25634148916 is a wasteful number, since it uses less digits than its factorization.

25634148916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18468758 (or 18468756 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The spelling of 25634148916 in words is "twenty-five billion, six hundred thirty-four million, one hundred forty-eight thousand, nine hundred sixteen".