82797760516 has 9 divisors (see below), whose sum is σ = 144897088021. Its totient is φ = 41398592512.

The previous prime is 82797760471. The next prime is 82797760519. The reversal of 82797760516 is 61506779728.

The square root of 82797760516 is 287746.

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., 1741392900 + 81056367616 = 41730^2 + 284704^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82797760519) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 503556 + ... + 647428.

Almost surely, 2^82797760516 is an apocalyptic number.

82797760516 is the 287746-th square number.

It is an amenable number.

82797760516 is a deficient number, since it is larger than the sum of its proper divisors (62099327505).

82797760516 is an frugal number, since it uses more digits than its factorization.

82797760516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287750 (or 143875 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 82797760516 in words is "eighty-two billion, seven hundred ninety-seven million, seven hundred sixty thousand, five hundred sixteen".