82518870879 has 16 divisors (see below), whose sum is σ = 124851248640. Its totient is φ = 53842099320.

The previous prime is 82518870871. The next prime is 82518870899. The reversal of 82518870879 is 97807881528.

It is not a de Polignac number, because 82518870879 - 2³ = 82518870871 is a prime.

It is a super-2 number, since 2×82518870879² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82518870871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32512077 + ... + 32514614.

It is an arithmetic number, because the mean of its divisors is an integer number (7803203040).

Almost surely, 2^82518870879 is an apocalyptic number.

82518870879 is a deficient number, since it is larger than the sum of its proper divisors (42332377761).

82518870879 is a wasteful number, since it uses less digits than its factorization.

82518870879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65026747 (or 65026741 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 63.

The spelling of 82518870879 in words is "eighty-two billion, five hundred eighteen million, eight hundred seventy thousand, eight hundred seventy-nine".