79550535680 has 768 divisors, whose sum is σ = 254741760000. Its totient is φ = 23602790400.

The previous prime is 79550535677. The next prime is 79550535697. The reversal of 79550535680 is 8653505597.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1120430045 + ... + 1120430115.

It is an arithmetic number, because the mean of its divisors is an integer number (331695000).

Almost surely, 2^79550535680 is an apocalyptic number.

79550535680 is a gapful number since it is divisible by the number (70) 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 79550535680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127370880000).

79550535680 is an abundant number, since it is smaller than the sum of its proper divisors (175191224320).

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

79550535680 is a wasteful number, since it uses less digits than its factorization.

79550535680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 53.

The spelling of 79550535680 in words is "seventy-nine billion, five hundred fifty million, five hundred thirty-five thousand, six hundred eighty".