80877919440 has 160 divisors (see below), whose sum is σ = 266559724800. Its totient is φ = 20240416768.

The previous prime is 80877919439. The next prime is 80877919469. The reversal of 80877919440 is 4491977808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154336 + ... + 430784.

It is an arithmetic number, because the mean of its divisors is an integer number (1665998280).

Almost surely, 2^80877919440 is an apocalyptic number.

80877919440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80877919440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133279862400).

80877919440 is an abundant number, since it is smaller than the sum of its proper divisors (185681805360).

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

80877919440 is a wasteful number, since it uses less digits than its factorization.

80877919440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276541 (or 276535 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 80877919440 in words is "eighty billion, eight hundred seventy-seven million, nine hundred nineteen thousand, four hundred forty".