393939458323 has 6 divisors (see below), whose sum is σ = 396012803732. Its totient is φ = 391876911780.

The previous prime is 393939458273. The next prime is 393939458347. The reversal of 393939458323 is 323854939393.

It is a happy number.

It is not a de Polignac number, because 393939458323 - 2²⁹ = 393402587411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393939458383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5362761 + ... + 5435722.

Almost surely, 2^393939458323 is an apocalyptic number.

393939458323 is a deficient number, since it is larger than the sum of its proper divisors (2073345409).

393939458323 is an equidigital number, since it uses as much as digits as its factorization.

393939458323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10798865 (or 10798674 counting only the distinct ones).

The product of its digits is 56687040, while the sum is 61.

The spelling of 393939458323 in words is "three hundred ninety-three billion, nine hundred thirty-nine million, four hundred fifty-eight thousand, three hundred twenty-three".