80746668820 has 24 divisors (see below), whose sum is σ = 169573890528. Its totient is φ = 32297546400.

The previous prime is 80746668817. The next prime is 80746668841. The reversal of 80746668820 is 2886664708.

It is a congruent number.

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, 760815 + ... + 860425.

It is an arithmetic number, because the mean of its divisors is an integer number (7065578772).

Almost surely, 2^80746668820 is an apocalyptic number.

It is an amenable number.

80746668820 is an abundant number, since it is smaller than the sum of its proper divisors (88827221708).

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

80746668820 is a wasteful number, since it uses less digits than its factorization.

80746668820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140151 (or 140149 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 80746668820 in words is "eighty billion, seven hundred forty-six million, six hundred sixty-eight thousand, eight hundred twenty".