25318747368 has 112 divisors (see below), whose sum is σ = 71284410720. Its totient is φ = 8426781216.

The previous prime is 25318747357. The next prime is 25318747379. The reversal of 25318747368 is 86374781352.

It is a happy number.

25318747368 is a `hidden beast` number, since 2 + 5 + 31 + 87 + 473 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (25318747357) and next prime (25318747379).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 27 ways as a sum of consecutive naturals, for example, 4330255 + ... + 4336097.

Almost surely, 2^25318747368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25318747368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35642205360).

25318747368 is an abundant number, since it is smaller than the sum of its proper divisors (45965663352).

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

25318747368 is an equidigital number, since it uses as much as digits as its factorization.

25318747368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610 (or 6591 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 25318747368 in words is "twenty-five billion, three hundred eighteen million, seven hundred forty-seven thousand, three hundred sixty-eight".