82451532688 has 80 divisors (see below), whose sum is σ = 195806574720. Its totient is φ = 32844883968.

The previous prime is 82451532679. The next prime is 82451532689. The reversal of 82451532688 is 88623515428.

It is not an unprimeable number, because it can be changed into a prime (82451532689) 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, 252745 + ... + 478312.

It is an arithmetic number, because the mean of its divisors is an integer number (2447582184).

Almost surely, 2^82451532688 is an apocalyptic number.

It is an amenable number.

82451532688 is an abundant number, since it is smaller than the sum of its proper divisors (113355042032).

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

82451532688 is a wasteful number, since it uses less digits than its factorization.

82451532688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731144 (or 731138 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The spelling of 82451532688 in words is "eighty-two billion, four hundred fifty-one million, five hundred thirty-two thousand, six hundred eighty-eight".