320987909046 has 24 divisors (see below), whose sum is σ = 746788197240. Its totient is φ = 91710831072.

The previous prime is 320987909029. The next prime is 320987909051. The reversal of 320987909046 is 640909789023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545897511 + ... + 545898098.

It is an arithmetic number, because the mean of its divisors is an integer number (31116174885).

Almost surely, 2^320987909046 is an apocalyptic number.

320987909046 is an abundant number, since it is smaller than the sum of its proper divisors (425800288194).

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

320987909046 is a wasteful number, since it uses less digits than its factorization.

320987909046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091795628 (or 1091795621 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 320987909046 in words is "three hundred twenty billion, nine hundred eighty-seven million, nine hundred nine thousand, forty-six".