82863431268 has 48 divisors (see below), whose sum is σ = 194838799680. Its totient is φ = 27408338944.

The previous prime is 82863431257. The next prime is 82863431297. The reversal of 82863431268 is 86213436828.

It is a self number, because there is not a number n which added to its sum of digits gives 82863431268.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4665028 + ... + 4682756.

It is an arithmetic number, because the mean of its divisors is an integer number (4059141660).

Almost surely, 2^82863431268 is an apocalyptic number.

It is an amenable number.

82863431268 is an abundant number, since it is smaller than the sum of its proper divisors (111975368412).

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

82863431268 is a wasteful number, since it uses less digits than its factorization.

82863431268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20716 (or 20714 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 51.

The spelling of 82863431268 in words is "eighty-two billion, eight hundred sixty-three million, four hundred thirty-one thousand, two hundred sixty-eight".