80029437920 has 48 divisors (see below), whose sum is σ = 199020583440. Its totient is φ = 30326943744.

The previous prime is 80029437919. The next prime is 80029437931. The reversal of 80029437920 is 2973492008.

It is a super-2 number, since 2×80029437920² (a number of 23 digits) contains 22 as substring.

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, 13159697 + ... + 13165776.

It is an arithmetic number, because the mean of its divisors is an integer number (4146262155).

Almost surely, 2^80029437920 is an apocalyptic number.

80029437920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80029437920 is an abundant number, since it is smaller than the sum of its proper divisors (118991145520).

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

80029437920 is a wasteful number, since it uses less digits than its factorization.

80029437920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26325507 (or 26325499 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 80029437920 in words is "eighty billion, twenty-nine million, four hundred thirty-seven thousand, nine hundred twenty".