83279139000 has 128 divisors (see below), whose sum is σ = 259941614400. Its totient is φ = 22198310400.

The previous prime is 83279138989. The next prime is 83279139023. The reversal of 83279139000 is 93197238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9682702 + ... + 9691298.

Almost surely, 2^83279139000 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 83279139000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129970807200).

83279139000 is an abundant number, since it is smaller than the sum of its proper divisors (176662475400).

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

83279139000 is a wasteful number, since it uses less digits than its factorization.

83279139000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11850 (or 11836 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 83279139000 in words is "eighty-three billion, two hundred seventy-nine million, one hundred thirty-nine thousand".