400770613684 has 36 divisors (see below), whose sum is σ = 816199507200. Its totient is φ = 171686193840.

The previous prime is 400770613637. The next prime is 400770613709. The reversal of 400770613684 is 486316077004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33517 + ... + 895915.

Almost surely, 2^400770613684 is an apocalyptic number.

It is an amenable number.

400770613684 is an abundant number, since it is smaller than the sum of its proper divisors (415428893516).

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

400770613684 is a wasteful number, since it uses less digits than its factorization.

400770613684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864788 (or 864779 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 400770613684 in words is "four hundred billion, seven hundred seventy million, six hundred thirteen thousand, six hundred eighty-four".