82611897576 has 32 divisors (see below), whose sum is σ = 222416648160. Its totient is φ = 25419045312.

The previous prime is 82611897569. The next prime is 82611897607. The reversal of 82611897576 is 67579811628.

It is a super-2 number, since 2×82611897576² (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 7 ways as a sum of consecutive naturals, for example, 132390550 + ... + 132391173.

It is an arithmetic number, because the mean of its divisors is an integer number (6950520255).

Almost surely, 2^82611897576 is an apocalyptic number.

It is an amenable number.

82611897576 is an abundant number, since it is smaller than the sum of its proper divisors (139804750584).

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

82611897576 is a wasteful number, since it uses less digits than its factorization.

82611897576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264781745 (or 264781741 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 60.

The spelling of 82611897576 in words is "eighty-two billion, six hundred eleven million, eight hundred ninety-seven thousand, five hundred seventy-six".