81968807674232 has 64 divisors (see below), whose sum is σ = 162606004915200. Its totient is φ = 38629433018880.

The previous prime is 81968807674231. The next prime is 81968807674249. The reversal of 81968807674232 is 23247670886918.

81968807674232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81968807674231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54405632 + ... + 55891952.

It is an arithmetic number, because the mean of its divisors is an integer number (2540718826800).

Almost surely, 2^{81968807674232} is an apocalyptic number.

It is an amenable number.

81968807674232 is a deficient number, since it is larger than the sum of its proper divisors (80637197240968).

81968807674232 is a wasteful number, since it uses less digits than its factorization.

81968807674232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488196 (or 1488192 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 71.

The spelling of 81968807674232 in words is "eighty-one trillion, nine hundred sixty-eight billion, eight hundred seven million, six hundred seventy-four thousand, two hundred thirty-two".