83479931808 has 384 divisors, whose sum is σ = 286334963712. Its totient is φ = 20666105856.

The previous prime is 83479931807. The next prime is 83479931849. The reversal of 83479931808 is 80813997438.

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 63 ways as a sum of consecutive naturals, for example, 101433285 + ... + 101434107.

It is an arithmetic number, because the mean of its divisors is an integer number (745663968).

Almost surely, 2^83479931808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83479931808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143167481856).

83479931808 is an abundant number, since it is smaller than the sum of its proper divisors (202855031904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83479931808 is a wasteful number, since it uses less digits than its factorization.

83479931808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 83479931808 in words is "eighty-three billion, four hundred seventy-nine million, nine hundred thirty-one thousand, eight hundred eight".