80819579412 has 96 divisors (see below), whose sum is σ = 246163800960. Its totient is φ = 22606871040.

The previous prime is 80819579327. The next prime is 80819579431. The reversal of 80819579412 is 21497591808.

It is a happy number.

80819579412 is a `hidden beast` number, since 80 + 81 + 9 + 5 + 79 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2601093 + ... + 2631980.

It is an arithmetic number, because the mean of its divisors is an integer number (2564206260).

Almost surely, 2^80819579412 is an apocalyptic number.

It is an amenable number.

80819579412 is an abundant number, since it is smaller than the sum of its proper divisors (165344221548).

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

80819579412 is a wasteful number, since it uses less digits than its factorization.

80819579412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233110 (or 5233102 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 80819579412 in words is "eighty billion, eight hundred nineteen million, five hundred seventy-nine thousand, four hundred twelve".