25428892764 has 48 divisors (see below), whose sum is σ = 66477511296. Its totient is φ = 7497460800.

The previous prime is 25428892739. The next prime is 25428892813. The reversal of 25428892764 is 46729882452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2598402 + ... + 2608169.

It is an arithmetic number, because the mean of its divisors is an integer number (1384948152).

Almost surely, 2^25428892764 is an apocalyptic number.

It is an amenable number.

25428892764 is an abundant number, since it is smaller than the sum of its proper divisors (41048618532).

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

25428892764 is a wasteful number, since it uses less digits than its factorization.

25428892764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206626 (or 5206624 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 25428892764 in words is "twenty-five billion, four hundred twenty-eight million, eight hundred ninety-two thousand, seven hundred sixty-four".