80863081920 has 224 divisors, whose sum is σ = 300281644800. Its totient is φ = 20428526592.

The previous prime is 80863081879. The next prime is 80863081921. The reversal of 80863081920 is 2918036808.

80863081920 is a `hidden beast` number, since 8 + 0 + 8 + 630 + 8 + 1 + 9 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80863081921) by changing a digit.

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, 82134 + ... + 410453.

Almost surely, 2^80863081920 is an apocalyptic number.

80863081920 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 80863081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150140822400).

80863081920 is an abundant number, since it is smaller than the sum of its proper divisors (219418562880).

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

80863081920 is a wasteful number, since it uses less digits than its factorization.

80863081920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492632 (or 492616 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 80863081920 in words is "eighty billion, eight hundred sixty-three million, eighty-one thousand, nine hundred twenty".