79758178560 has 216 divisors, whose sum is σ = 276179589504. Its totient is φ = 21251543040.

The previous prime is 79758178553. The next prime is 79758178627. The reversal of 79758178560 is 6587185797.

79758178560 is a `hidden beast` number, since 7 + 9 + 7 + 58 + 17 + 8 + 560 = 666.

It is a super-2 number, since 2×79758178560² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20860809 + ... + 20864631.

Almost surely, 2^79758178560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79758178560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138089794752).

79758178560 is an abundant number, since it is smaller than the sum of its proper divisors (196421410944).

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

79758178560 is a wasteful number, since it uses less digits than its factorization.

79758178560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661 (or 5644 counting only the distinct ones).

The product of its (nonzero) digits is 29635200, while the sum is 63.

The spelling of 79758178560 in words is "seventy-nine billion, seven hundred fifty-eight million, one hundred seventy-eight thousand, five hundred sixty".