80844308468881 has 64 divisors (see below), whose sum is σ = 92915237376000. Its totient is φ = 69932207923200.

The previous prime is 80844308468773. The next prime is 80844308468933. The reversal of 80844308468881 is 18886480344808.

It is a happy number.

It is not a de Polignac number, because 80844308468881 - 2²⁷ = 80844174251153 is a prime.

It is a super-2 number, since 2×80844308468881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80844308468881.

It is not an unprimeable number, because it can be changed into a prime (80844308468281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 234375861 + ... + 234720541.

It is an arithmetic number, because the mean of its divisors is an integer number (1451800584000).

Almost surely, 2^{80844308468881} is an apocalyptic number.

It is an amenable number.

80844308468881 is a deficient number, since it is larger than the sum of its proper divisors (12070928907119).

80844308468881 is a wasteful number, since it uses less digits than its factorization.

80844308468881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345010.

The product of its (nonzero) digits is 301989888, while the sum is 70.

The spelling of 80844308468881 in words is "eighty trillion, eight hundred forty-four billion, three hundred eight million, four hundred sixty-eight thousand, eight hundred eighty-one".