82521255984 has 40 divisors (see below), whose sum is σ = 214591717632. Its totient is φ = 27324916800.

The previous prime is 82521255977. The next prime is 82521255991. The reversal of 82521255984 is 48955212528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82521255977) and next prime (82521255991).

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, 5685444 + ... + 5699939.

Almost surely, 2^82521255984 is an apocalyptic number.

It is an amenable number.

82521255984 is an abundant number, since it is smaller than the sum of its proper divisors (132070461648).

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

82521255984 is a wasteful number, since it uses less digits than its factorization.

82521255984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11385545 (or 11385539 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 51.

The spelling of 82521255984 in words is "eighty-two billion, five hundred twenty-one million, two hundred fifty-five thousand, nine hundred eighty-four".