80880831999 has 96 divisors (see below), whose sum is σ = 135907319808. Its totient is φ = 45868680000.

The previous prime is 80880831991. The next prime is 80880832001. The reversal of 80880831999 is 99913808808.

It is not a de Polignac number, because 80880831999 - 2³ = 80880831991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80880831991) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23034654 + ... + 23038164.

It is an arithmetic number, because the mean of its divisors is an integer number (1415701248).

Almost surely, 2^80880831999 is an apocalyptic number.

80880831999 is a deficient number, since it is larger than the sum of its proper divisors (55026487809).

80880831999 is a wasteful number, since it uses less digits than its factorization.

80880831999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3769 (or 3766 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The spelling of 80880831999 in words is "eighty billion, eight hundred eighty million, eight hundred thirty-one thousand, nine hundred ninety-nine".