387813680680 has 32 divisors (see below), whose sum is σ = 873216433800. Its totient is φ = 155012467456.

The previous prime is 387813680663. The next prime is 387813680687. The reversal of 387813680680 is 86086318783.

It can be written as a sum of positive squares in 4 ways, for example, as 375692991844 + 12120688836 = 612938^2 + 110094^2 .

It is not an unprimeable number, because it can be changed into a prime (387813680687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475795 + ... + 3585634.

Almost surely, 2^387813680680 is an apocalyptic number.

It is an amenable number.

387813680680 is an abundant number, since it is smaller than the sum of its proper divisors (485402753120).

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

387813680680 is a wasteful number, since it uses less digits than its factorization.

387813680680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7062813 (or 7062809 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 387813680680 in words is "three hundred eighty-seven billion, eight hundred thirteen million, six hundred eighty thousand, six hundred eighty".