232399945491 has 16 divisors (see below), whose sum is σ = 354151175424. Its totient is φ = 132793246944.

The previous prime is 232399945439. The next prime is 232399945513. The reversal of 232399945491 is 194549993232.

It is not a de Polignac number, because 232399945491 - 2⁷ = 232399945363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232399945411) 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, 160821 + ... + 700473.

It is an arithmetic number, because the mean of its divisors is an integer number (22134448464).

Almost surely, 2^232399945491 is an apocalyptic number.

232399945491 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

232399945491 is a deficient number, since it is larger than the sum of its proper divisors (121751229933).

232399945491 is a wasteful number, since it uses less digits than its factorization.

232399945491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560170.

The product of its digits is 18895680, while the sum is 60.

The spelling of 232399945491 in words is "two hundred thirty-two billion, three hundred ninety-nine million, nine hundred forty-five thousand, four hundred ninety-one".