231975591432 has 32 divisors (see below), whose sum is σ = 624549670080. Its totient is φ = 71377104960.

The previous prime is 231975591431. The next prime is 231975591437. The reversal of 231975591432 is 234195579132.

It is not an unprimeable number, because it can be changed into a prime (231975591431) 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, 371755444 + ... + 371756067.

It is an arithmetic number, because the mean of its divisors is an integer number (19517177190).

Almost surely, 2^231975591432 is an apocalyptic number.

It is an amenable number.

231975591432 is an abundant number, since it is smaller than the sum of its proper divisors (392574078648).

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

231975591432 is a wasteful number, since it uses less digits than its factorization.

231975591432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743511533 (or 743511529 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 51.

The spelling of 231975591432 in words is "two hundred thirty-one billion, nine hundred seventy-five million, five hundred ninety-one thousand, four hundred thirty-two".