25764988338 has 48 divisors (see below), whose sum is σ = 56856039552. Its totient is φ = 8430156000.

The previous prime is 25764988321. The next prime is 25764988373. The reversal of 25764988338 is 83388946752.

25764988338 is a `hidden beast` number, since 257 + 6 + 49 + 8 + 8 + 338 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 515223 + ... + 563013.

It is an arithmetic number, because the mean of its divisors is an integer number (1184500824).

Almost surely, 2^25764988338 is an apocalyptic number.

25764988338 is an abundant number, since it is smaller than the sum of its proper divisors (31091051214).

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

25764988338 is a wasteful number, since it uses less digits than its factorization.

25764988338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48351 (or 48348 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 25764988338 in words is "twenty-five billion, seven hundred sixty-four million, nine hundred eighty-eight thousand, three hundred thirty-eight".