6921020376 has 40 divisors (see below), whose sum is σ = 19385267220. Its totient is φ = 2307006576.

The previous prime is 6921020363. The next prime is 6921020383. The reversal of 6921020376 is 6730201296.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 6921020376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5339646 + ... + 5340941.

Almost surely, 2^6921020376 is an apocalyptic number.

It is an amenable number.

6921020376 is an abundant number, since it is smaller than the sum of its proper divisors (12464246844).

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

6921020376 is a wasteful number, since it uses less digits than its factorization.

6921020376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680605 (or 10680592 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 6921020376 is about 83192.6702059743. The cubic root of 6921020376 is about 1905.7095453462.

The spelling of 6921020376 in words is "six billion, nine hundred twenty-one million, twenty thousand, three hundred seventy-six".