3857612816 has 20 divisors (see below), whose sum is σ = 7477903824. Its totient is φ = 1927831200.

The previous prime is 3857612777. The next prime is 3857612819. The reversal of 3857612816 is 6182167583.

It is not an unprimeable number, because it can be changed into a prime (3857612819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27770 + ... + 92121.

Almost surely, 2^3857612816 is an apocalyptic number.

It is an amenable number.

3857612816 is a deficient number, since it is larger than the sum of its proper divisors (3620291008).

3857612816 is a wasteful number, since it uses less digits than its factorization.

3857612816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121910 (or 121904 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 3857612816 is about 62109.6837538238. The cubic root of 3857612816 is about 1568.3375665867.

The spelling of 3857612816 in words is "three billion, eight hundred fifty-seven million, six hundred twelve thousand, eight hundred sixteen".