231783273870 has 16 divisors (see below), whose sum is σ = 556279857360. Its totient is φ = 61808873024.

The previous prime is 231783273817. The next prime is 231783273889. The reversal of 231783273870 is 78372387132.

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, 3863054535 + ... + 3863054594.

It is an arithmetic number, because the mean of its divisors is an integer number (34767491085).

Almost surely, 2^231783273870 is an apocalyptic number.

231783273870 is an abundant number, since it is smaller than the sum of its proper divisors (324496583490).

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

231783273870 is a wasteful number, since it uses less digits than its factorization.

231783273870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726109139.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 231783273870 in words is "two hundred thirty-one billion, seven hundred eighty-three million, two hundred seventy-three thousand, eight hundred seventy".