25367478912 has 160 divisors (see below), whose sum is σ = 76451284800. Its totient is φ = 8348520960.

The previous prime is 25367478793. The next prime is 25367478923. The reversal of 25367478912 is 21987476352.

It is a happy number.

25367478912 is a `hidden beast` number, since 25 + 3 + 67 + 478 + 91 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 803587 + ... + 834557.

It is an arithmetic number, because the mean of its divisors is an integer number (477820530).

Almost surely, 2^25367478912 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 25367478912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38225642400).

25367478912 is an abundant number, since it is smaller than the sum of its proper divisors (51083805888).

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

25367478912 is an equidigital number, since it uses as much as digits as its factorization.

25367478912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31076 (or 31055 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 25367478912 in words is "twenty-five billion, three hundred sixty-seven million, four hundred seventy-eight thousand, nine hundred twelve".