80809907398992 has 160 divisors (see below), whose sum is σ = 232606997199360. Its totient is φ = 26860859228160.

The previous prime is 80809907398991. The next prime is 80809907398993. The reversal of 80809907398992 is 29989370990808.

It is an interprime number because it is at equal distance from previous prime (80809907398991) and next prime (80809907398993).

It is a super-2 number, since 2×80809907398992² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80809907398991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3556606192 + ... + 3556628912.

It is an arithmetic number, because the mean of its divisors is an integer number (1453793732496).

Almost surely, 2^{80809907398992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80809907398992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116303498599680).

80809907398992 is an abundant number, since it is smaller than the sum of its proper divisors (151797089800368).

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

80809907398992 is a wasteful number, since it uses less digits than its factorization.

80809907398992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45538 (or 45526 counting only the distinct ones).

The product of its (nonzero) digits is 1269789696, while the sum is 81.

The spelling of 80809907398992 in words is "eighty trillion, eight hundred nine billion, nine hundred seven million, three hundred ninety-eight thousand, nine hundred ninety-two".