83879313569 has 8 divisors (see below), whose sum is σ = 84258334080. Its totient is φ = 83500527376.

The previous prime is 83879313563. The next prime is 83879313599. The reversal of 83879313569 is 96531397838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83879313569 - 2²⁰ = 83878264993 is a prime.

It is a super-2 number, since 2×83879313569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83879313563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679919 + ... + 793755.

It is an arithmetic number, because the mean of its divisors is an integer number (10532291760).

Almost surely, 2^83879313569 is an apocalyptic number.

It is an amenable number.

83879313569 is a deficient number, since it is larger than the sum of its proper divisors (379020511).

83879313569 is a wasteful number, since it uses less digits than its factorization.

83879313569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117159.

The product of its digits is 29393280, while the sum is 62.

The spelling of 83879313569 in words is "eighty-three billion, eight hundred seventy-nine million, three hundred thirteen thousand, five hundred sixty-nine".