231318768858 has 16 divisors (see below), whose sum is σ = 463768685760. Its totient is φ = 76917731616.

The previous prime is 231318768827. The next prime is 231318768881. The reversal of 231318768858 is 858867813132.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47128510 + ... + 47133417.

It is an arithmetic number, because the mean of its divisors is an integer number (28985542860).

Almost surely, 2^231318768858 is an apocalyptic number.

231318768858 is an abundant number, since it is smaller than the sum of its proper divisors (232449916902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231318768858 is a wasteful number, since it uses less digits than its factorization.

231318768858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94262341.

The product of its digits is 15482880, while the sum is 60.

The spelling of 231318768858 in words is "two hundred thirty-one billion, three hundred eighteen million, seven hundred sixty-eight thousand, eight hundred fifty-eight".