3685351856 has 20 divisors (see below), whose sum is σ = 7238184792. Its totient is φ = 1817433216.

The previous prime is 3685351843. The next prime is 3685351861. The reversal of 3685351856 is 6581535863.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576466 + ... + 1578801.

Almost surely, 2^3685351856 is an apocalyptic number.

It is an amenable number.

3685351856 is a deficient number, since it is larger than the sum of its proper divisors (3552832936).

3685351856 is a wasteful number, since it uses less digits than its factorization.

3685351856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155348 (or 3155342 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 50.

The square root of 3685351856 is about 60707.0988929631. The cubic root of 3685351856 is about 1544.6365935184.

The spelling of 3685351856 in words is "three billion, six hundred eighty-five million, three hundred fifty-one thousand, eight hundred fifty-six".