25043734164 has 24 divisors (see below), whose sum is σ = 59013950688. Its totient is φ = 8265258400.

The previous prime is 25043734153. The next prime is 25043734193. The reversal of 25043734164 is 46143734052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10330362 + ... + 10332785.

It is an arithmetic number, because the mean of its divisors is an integer number (2458914612).

Almost surely, 2^25043734164 is an apocalyptic number.

It is an amenable number.

25043734164 is an abundant number, since it is smaller than the sum of its proper divisors (33970216524).

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

25043734164 is a wasteful number, since it uses less digits than its factorization.

25043734164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20663255 (or 20663253 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

The spelling of 25043734164 in words is "twenty-five billion, forty-three million, seven hundred thirty-four thousand, one hundred sixty-four".