83479931809 has 8 divisors (see below), whose sum is σ = 87033051072. Its totient is φ = 80000072880.

The previous prime is 83479931807. The next prime is 83479931849. The reversal of 83479931809 is 90813997438.

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 83479931809 - 2¹ = 83479931807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83479931807) 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, 18312757 + ... + 18317314.

It is an arithmetic number, because the mean of its divisors is an integer number (10879131384).

Almost surely, 2^83479931809 is an apocalyptic number.

It is an amenable number.

83479931809 is a deficient number, since it is larger than the sum of its proper divisors (3553119263).

83479931809 is a wasteful number, since it uses less digits than its factorization.

83479931809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36630167.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 83479931809 in words is "eighty-three billion, four hundred seventy-nine million, nine hundred thirty-one thousand, eight hundred nine".