3856624688 has 40 divisors (see below), whose sum is σ = 8815150080. Its totient is φ = 1599520320.

The previous prime is 3856624669. The next prime is 3856624729. The reversal of 3856624688 is 8864266583.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 551918 + ... + 558861.

It is an arithmetic number, because the mean of its divisors is an integer number (220378752).

Almost surely, 2^3856624688 is an apocalyptic number.

It is an amenable number.

3856624688 is an abundant number, since it is smaller than the sum of its proper divisors (4958525392).

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

3856624688 is a wasteful number, since it uses less digits than its factorization.

3856624688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110825 (or 1110819 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 56.

The square root of 3856624688 is about 62101.7285427709. The cubic root of 3856624688 is about 1568.2036451975.

The spelling of 3856624688 in words is "three billion, eight hundred fifty-six million, six hundred twenty-four thousand, six hundred eighty-eight".