320847742392 has 64 divisors (see below), whose sum is σ = 807190272000. Its totient is φ = 106274338560.

The previous prime is 320847742367. The next prime is 320847742393. The reversal of 320847742392 is 293247748023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320847742393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4257859 + ... + 4332557.

It is an arithmetic number, because the mean of its divisors is an integer number (12612348000).

Almost surely, 2^320847742392 is an apocalyptic number.

It is an amenable number.

320847742392 is an abundant number, since it is smaller than the sum of its proper divisors (486342529608).

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

320847742392 is a wasteful number, since it uses less digits than its factorization.

320847742392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75836 (or 75832 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 320847742392 in words is "three hundred twenty billion, eight hundred forty-seven million, seven hundred forty-two thousand, three hundred ninety-two".