3854563857 has 12 divisors (see below), whose sum is σ = 5569469620. Its totient is φ = 2568894048.

The previous prime is 3854563849. The next prime is 3854563879. The reversal of 3854563857 is 7583654583.

3854563857 is a `hidden beast` number, since 38 + 545 + 63 + 8 + 5 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 345067776 + 3509496081 = 18576^2 + 59241^2 .

It is not a de Polignac number, because 3854563857 - 2³ = 3854563849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3854563897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37258 + ... + 95379.

Almost surely, 2^3854563857 is an apocalyptic number.

It is an amenable number.

3854563857 is a deficient number, since it is larger than the sum of its proper divisors (1714905763).

3854563857 is a wasteful number, since it uses less digits than its factorization.

3854563857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135872 (or 135869 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The square root of 3854563857 is about 62085.1339452529. The cubic root of 3854563857 is about 1567.9242663132.

The spelling of 3854563857 in words is "three billion, eight hundred fifty-four million, five hundred sixty-three thousand, eight hundred fifty-seven".