25750774938 has 32 divisors (see below), whose sum is σ = 58865489280. Its totient is φ = 7356542400.

The previous prime is 25750774913. The next prime is 25750774969. The reversal of 25750774938 is 83947705752.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 415788 + ... + 473688.

It is an arithmetic number, because the mean of its divisors is an integer number (1839546540).

Almost surely, 2^25750774938 is an apocalyptic number.

25750774938 is an abundant number, since it is smaller than the sum of its proper divisors (33114714342).

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

25750774938 is a wasteful number, since it uses less digits than its factorization.

25750774938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68502.

The product of its (nonzero) digits is 14817600, while the sum is 57.

The spelling of 25750774938 in words is "twenty-five billion, seven hundred fifty million, seven hundred seventy-four thousand, nine hundred thirty-eight".