83581469279 has 16 divisors (see below), whose sum is σ = 106332115200. Its totient is φ = 65128414680.

The previous prime is 83581469263. The next prime is 83581469287. The reversal of 83581469279 is 97296418538.

It is not a de Polignac number, because 83581469279 - 2⁴ = 83581469263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83581469479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11072489 + ... + 11080034.

It is an arithmetic number, because the mean of its divisors is an integer number (6645757200).

Almost surely, 2^83581469279 is an apocalyptic number.

83581469279 is a deficient number, since it is larger than the sum of its proper divisors (22750645921).

83581469279 is a wasteful number, since it uses less digits than its factorization.

83581469279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22152555 (or 22152541 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 62.

The spelling of 83581469279 in words is "eighty-three billion, five hundred eighty-one million, four hundred sixty-nine thousand, two hundred seventy-nine".