82518987967 has 4 divisors (see below), whose sum is σ = 88866602440. Its totient is φ = 76171373496.

The previous prime is 82518987959. The next prime is 82518987973. The reversal of 82518987967 is 76978981528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82518987967 - 2³ = 82518987959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82518987896 and 82518987905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82518987917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173807217 + ... + 3173807242.

It is an arithmetic number, because the mean of its divisors is an integer number (22216650610).

Almost surely, 2^82518987967 is an apocalyptic number.

82518987967 is a deficient number, since it is larger than the sum of its proper divisors (6347614473).

82518987967 is a wasteful number, since it uses less digits than its factorization.

82518987967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347614472.

The product of its digits is 121927680, while the sum is 70.

The spelling of 82518987967 in words is "eighty-two billion, five hundred eighteen million, nine hundred eighty-seven thousand, nine hundred sixty-seven".