83879722479 has 24 divisors (see below), whose sum is σ = 131440412208. Its totient is φ = 47437125120.

The previous prime is 83879722471. The next prime is 83879722517. The reversal of 83879722479 is 97422797838.

It is not a de Polignac number, because 83879722479 - 2³ = 83879722471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83879722471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2927032 + ... + 2955549.

It is an arithmetic number, because the mean of its divisors is an integer number (5476683842).

Almost surely, 2^83879722479 is an apocalyptic number.

83879722479 is a deficient number, since it is larger than the sum of its proper divisors (47560689729).

83879722479 is a wasteful number, since it uses less digits than its factorization.

83879722479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882695 (or 5882688 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 66.

The spelling of 83879722479 in words is "eighty-three billion, eight hundred seventy-nine million, seven hundred twenty-two thousand, four hundred seventy-nine".