80777597796 has 243 divisors, whose sum is σ = 243533649177. Its totient is φ = 22509748800.

The previous prime is 80777597759. The next prime is 80777597809. The reversal of 80777597796 is 69779577708.

The square root of 80777597796 is 284214.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 77610159396 + 3167438400 = 278586^2 + 56280^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 799778146 + ... + 799778246.

Almost surely, 2^80777597796 is an apocalyptic number.

80777597796 is the 284214-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80777597796

80777597796 is an abundant number, since it is smaller than the sum of its proper divisors (162756051381).

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

80777597796 is a wasteful number, since it uses less digits than its factorization.

80777597796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 326728080, while the sum is 72.

The spelling of 80777597796 in words is "eighty billion, seven hundred seventy-seven million, five hundred ninety-seven thousand, seven hundred ninety-six".