84131010992 has 120 divisors (see below), whose sum is σ = 191222760960. Its totient is φ = 35752026240.

The previous prime is 84131010941. The next prime is 84131011093. The reversal of 84131010992 is 29901013148.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68343017 + ... + 68344247.

It is an arithmetic number, because the mean of its divisors is an integer number (1593523008).

Almost surely, 2^84131010992 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 84131010992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95611380480).

84131010992 is an abundant number, since it is smaller than the sum of its proper divisors (107091749968).

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

84131010992 is a wasteful number, since it uses less digits than its factorization.

84131010992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 84131010992 in words is "eighty-four billion, one hundred thirty-one million, ten thousand, nine hundred ninety-two".