3913680725 has 12 divisors (see below), whose sum is σ = 4878378240. Its totient is φ = 3114548400.

The previous prime is 3913680697. The next prime is 3913680737. The reversal of 3913680725 is 5270863193.

It is not a de Polignac number, because 3913680725 - 2⁸ = 3913680469 is a prime.

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, 405035 + ... + 414584.

It is an arithmetic number, because the mean of its divisors is an integer number (406531520).

Almost surely, 2^3913680725 is an apocalyptic number.

It is an amenable number.

3913680725 is a deficient number, since it is larger than the sum of its proper divisors (964697515).

3913680725 is a wasteful number, since it uses less digits than its factorization.

3913680725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819820 (or 819815 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 3913680725 is about 62559.4175564319. The cubic root of 3913680725 is about 1575.8993066824.

The spelling of 3913680725 in words is "three billion, nine hundred thirteen million, six hundred eighty thousand, seven hundred twenty-five".