38985640725 has 12 divisors (see below), whose sum is σ = 64456259456. Its totient is φ = 20792341680.

The previous prime is 38985640697. The next prime is 38985640739. The reversal of 38985640725 is 52704658983.

38985640725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38985640725 - 2⁵ = 38985640693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259904197 + ... + 259904346.

Almost surely, 2^38985640725 is an apocalyptic number.

It is an amenable number.

38985640725 is a deficient number, since it is larger than the sum of its proper divisors (25470618731).

38985640725 is a wasteful number, since it uses less digits than its factorization.

38985640725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519808556 (or 519808551 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 38985640725 in words is "thirty-eight billion, nine hundred eighty-five million, six hundred forty thousand, seven hundred twenty-five".