18079615007280 has 640 divisors, whose sum is σ = 65776051968000. Its totient is φ = 4558639067136.

The previous prime is 18079615007273. The next prime is 18079615007291. The reversal of 18079615007280 is 8270051697081.

18079615007280 is a `hidden beast` number, since 1 + 8 + 0 + 7 + 9 + 61 + 500 + 72 + 8 + 0 = 666.

It is a super-2 number, since 2×18079615007280² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 683862222 + ... + 683888658.

It is an arithmetic number, because the mean of its divisors is an integer number (102775081200).

Almost surely, 2^{18079615007280} is an apocalyptic number.

18079615007280 is a gapful number since it is divisible by the number (10) 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 18079615007280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32888025984000).

18079615007280 is an abundant number, since it is smaller than the sum of its proper divisors (47696436960720).

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

18079615007280 is a wasteful number, since it uses less digits than its factorization.

18079615007280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26738 (or 26726 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 18079615007280 in words is "eighteen trillion, seventy-nine billion, six hundred fifteen million, seven thousand, two hundred eighty".