231628494239 has 8 divisors (see below), whose sum is σ = 246559014000. Its totient is φ = 216971929152.

The previous prime is 231628494217. The next prime is 231628494247. The reversal of 231628494239 is 932494826132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231628494239 - 2²⁰ = 231627445663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231628494259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68486924 + ... + 68490305.

It is an arithmetic number, because the mean of its divisors is an integer number (30819876750).

Almost surely, 2^231628494239 is an apocalyptic number.

231628494239 is a deficient number, since it is larger than the sum of its proper divisors (14930519761).

231628494239 is a wasteful number, since it uses less digits than its factorization.

231628494239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136977337.

The product of its digits is 4478976, while the sum is 53.

The spelling of 231628494239 in words is "two hundred thirty-one billion, six hundred twenty-eight million, four hundred ninety-four thousand, two hundred thirty-nine".