399875035780 has 48 divisors (see below), whose sum is σ = 917529459840. Its totient is φ = 145178611200.

The previous prime is 399875035771. The next prime is 399875035787. The reversal of 399875035780 is 87530578993.

It is not an unprimeable number, because it can be changed into a prime (399875035787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301445 + ... + 1579084.

It is an arithmetic number, because the mean of its divisors is an integer number (19115197080).

Almost surely, 2^399875035780 is an apocalyptic number.

It is an amenable number.

399875035780 is an abundant number, since it is smaller than the sum of its proper divisors (517654424060).

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

399875035780 is a wasteful number, since it uses less digits than its factorization.

399875035780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881180 (or 2881178 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 399875035780 in words is "three hundred ninety-nine billion, eight hundred seventy-five million, thirty-five thousand, seven hundred eighty".