3857916388806 has 64 divisors (see below), whose sum is σ = 8936474342400. Its totient is φ = 1232150119200.

The previous prime is 3857916388769. The next prime is 3857916388891. The reversal of 3857916388806 is 6088836197583.

3857916388806 is a `hidden beast` number, since 3 + 8 + 579 + 16 + 38 + 8 + 8 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9197710 + ... + 9608001.

It is an arithmetic number, because the mean of its divisors is an integer number (139632411600).

Almost surely, 2^{3857916388806} is an apocalyptic number.

3857916388806 is an abundant number, since it is smaller than the sum of its proper divisors (5078557953594).

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

3857916388806 is a wasteful number, since it uses less digits than its factorization.

3857916388806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18805882 (or 18805876 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 72.

The spelling of 3857916388806 in words is "three trillion, eight hundred fifty-seven billion, nine hundred sixteen million, three hundred eighty-eight thousand, eight hundred six".