231806633072 has 40 divisors (see below), whose sum is σ = 535602909696. Its totient is φ = 95026320576.

The previous prime is 231806632973. The next prime is 231806633087. The reversal of 231806633072 is 270336608132.

It is a congruent 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, 44990948 + ... + 44996099.

Almost surely, 2^231806633072 is an apocalyptic number.

It is an amenable number.

231806633072 is an abundant number, since it is smaller than the sum of its proper divisors (303796276624).

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

231806633072 is a wasteful number, since it uses less digits than its factorization.

231806633072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89987085 (or 89987079 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 231806633072 in words is "two hundred thirty-one billion, eight hundred six million, six hundred thirty-three thousand, seventy-two".