79527155820 has 576 divisors, whose sum is σ = 282435310080. Its totient is φ = 16614678528.

The previous prime is 79527155819. The next prime is 79527155833. The reversal of 79527155820 is 2855172597.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 271423594 + ... + 271423886.

It is an arithmetic number, because the mean of its divisors is an integer number (490339080).

Almost surely, 2^79527155820 is an apocalyptic number.

79527155820 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 79527155820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141217655040).

79527155820 is an abundant number, since it is smaller than the sum of its proper divisors (202908154260).

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

79527155820 is a wasteful number, since it uses less digits than its factorization.

79527155820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 51.

The spelling of 79527155820 in words is "seventy-nine billion, five hundred twenty-seven million, one hundred fifty-five thousand, eight hundred twenty".