84013700992 has 128 divisors (see below), whose sum is σ = 181838835360. Its totient is φ = 38434701312.

The previous prime is 84013700977. The next prime is 84013700993. The reversal of 84013700992 is 29900731048.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84013700993) 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, 130658623 + ... + 130659265.

Almost surely, 2^84013700992 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 84013700992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90919417680).

84013700992 is an abundant number, since it is smaller than the sum of its proper divisors (97825134368).

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

84013700992 is a wasteful number, since it uses less digits than its factorization.

84013700992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 84013700992 in words is "eighty-four billion, thirteen million, seven hundred thousand, nine hundred ninety-two".