239423854172 has 6 divisors (see below), whose sum is σ = 418991744808. Its totient is φ = 119711927084.

The previous prime is 239423854133. The next prime is 239423854181. The reversal of 239423854172 is 271458324932.

It is a self number, because there is not a number n which added to its sum of digits gives 239423854172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29927981768 + ... + 29927981775.

It is an arithmetic number, because the mean of its divisors is an integer number (69831957468).

Almost surely, 2^239423854172 is an apocalyptic number.

It is an amenable number.

239423854172 is a deficient number, since it is larger than the sum of its proper divisors (179567890636).

239423854172 is a wasteful number, since it uses less digits than its factorization.

239423854172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59855963547 (or 59855963545 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 239423854172 in words is "two hundred thirty-nine billion, four hundred twenty-three million, eight hundred fifty-four thousand, one hundred seventy-two".