320431667457 has 32 divisors (see below), whose sum is σ = 490656752640. Its totient is φ = 183963528000.

The previous prime is 320431667441. The next prime is 320431667471. The reversal of 320431667457 is 754766134023.

It is not a de Polignac number, because 320431667457 - 2⁴ = 320431667441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320431667657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12672207 + ... + 12697467.

It is an arithmetic number, because the mean of its divisors is an integer number (15333023520).

Almost surely, 2^320431667457 is an apocalyptic number.

It is an amenable number.

320431667457 is a deficient number, since it is larger than the sum of its proper divisors (170225085183).

320431667457 is a wasteful number, since it uses less digits than its factorization.

320431667457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45525.

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 320431667457 in words is "three hundred twenty billion, four hundred thirty-one million, six hundred sixty-seven thousand, four hundred fifty-seven".