82658371251 has 4 divisors (see below), whose sum is σ = 110211161672. Its totient is φ = 55105580832.

The previous prime is 82658371247. The next prime is 82658371291. The reversal of 82658371251 is 15217385628.

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

It is not a de Polignac number, because 82658371251 - 2² = 82658371247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82658371251.

It is not an unprimeable number, because it can be changed into a prime (82658371291) 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, 13776395206 + ... + 13776395211.

It is an arithmetic number, because the mean of its divisors is an integer number (27552790418).

Almost surely, 2^82658371251 is an apocalyptic number.

82658371251 is a deficient number, since it is larger than the sum of its proper divisors (27552790421).

82658371251 is a wasteful number, since it uses less digits than its factorization.

82658371251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27552790420.

The product of its digits is 806400, while the sum is 48.

The spelling of 82658371251 in words is "eighty-two billion, six hundred fifty-eight million, three hundred seventy-one thousand, two hundred fifty-one".