231887285677 has 32 divisors (see below), whose sum is σ = 258938265600. Its totient is φ = 206661419712.

The previous prime is 231887285633. The next prime is 231887285683. The reversal of 231887285677 is 776582788132.

It is a cyclic number.

It is not a de Polignac number, because 231887285677 - 2²³ = 231878897069 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231887285687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8074099 + ... + 8102767.

It is an arithmetic number, because the mean of its divisors is an integer number (8091820800).

Almost surely, 2^231887285677 is an apocalyptic number.

It is an amenable number.

231887285677 is a deficient number, since it is larger than the sum of its proper divisors (27050979923).

231887285677 is a wasteful number, since it uses less digits than its factorization.

231887285677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29017.

The product of its digits is 63221760, while the sum is 64.

The spelling of 231887285677 in words is "two hundred thirty-one billion, eight hundred eighty-seven million, two hundred eighty-five thousand, six hundred seventy-seven".