80812452920 has 32 divisors (see below), whose sum is σ = 187693441920. Its totient is φ = 31282239360.

The previous prime is 80812452911. The next prime is 80812452923. The reversal of 80812452920 is 2925421808.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80812452923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32584427 + ... + 32586906.

It is an arithmetic number, because the mean of its divisors is an integer number (5865420060).

Almost surely, 2^80812452920 is an apocalyptic number.

It is an amenable number.

80812452920 is an abundant number, since it is smaller than the sum of its proper divisors (106880989000).

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

80812452920 is a wasteful number, since it uses less digits than its factorization.

80812452920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65171375 (or 65171371 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 80812452920 in words is "eighty billion, eight hundred twelve million, four hundred fifty-two thousand, nine hundred twenty".