80479281792 has 768 divisors, whose sum is σ = 282229920000. Its totient is φ = 19859374080.

The previous prime is 80479281739. The next prime is 80479281793. The reversal of 80479281792 is 29718297408.

It is a super-2 number, since 2×80479281792² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80479281793) 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, 540129334 + ... + 540129482.

It is an arithmetic number, because the mean of its divisors is an integer number (367486875).

Almost surely, 2^80479281792 is an apocalyptic number.

80479281792 is a gapful number since it is divisible by the number (82) 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 80479281792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141114960000).

80479281792 is an abundant number, since it is smaller than the sum of its proper divisors (201750638208).

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

80479281792 is a wasteful number, since it uses less digits than its factorization.

80479281792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 244 counting only the distinct ones).

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

The spelling of 80479281792 in words is "eighty billion, four hundred seventy-nine million, two hundred eighty-one thousand, seven hundred ninety-two".