3811638814928 has 80 divisors (see below), whose sum is σ = 8913125523456. Its totient is φ = 1543709354880.

The previous prime is 3811638814897. The next prime is 3811638814957. The reversal of 3811638814928 is 8294188361183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8699888 + ... + 9127503.

Almost surely, 2^{3811638814928} is an apocalyptic number.

It is an amenable number.

3811638814928 is an abundant number, since it is smaller than the sum of its proper divisors (5101486708528).

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

3811638814928 is a wasteful number, since it uses less digits than its factorization.

3811638814928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17827512 (or 17827506 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 62.

The spelling of 3811638814928 in words is "three trillion, eight hundred eleven billion, six hundred thirty-eight million, eight hundred fourteen thousand, nine hundred twenty-eight".