80563931982 has 24 divisors (see below), whose sum is σ = 177160489896. Its totient is φ = 26453828016.

The previous prime is 80563931941. The next prime is 80563932023. The reversal of 80563931982 is 28913936508.

It is an interprime number because it is at equal distance from previous prime (80563931941) and next prime (80563932023).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33400093 + ... + 33402504.

It is an arithmetic number, because the mean of its divisors is an integer number (7381687079).

Almost surely, 2^80563931982 is an apocalyptic number.

80563931982 is an abundant number, since it is smaller than the sum of its proper divisors (96596557914).

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

80563931982 is a wasteful number, since it uses less digits than its factorization.

80563931982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66802672 (or 66802669 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 80563931982 in words is "eighty billion, five hundred sixty-three million, nine hundred thirty-one thousand, nine hundred eighty-two".