84071530992 has 80 divisors (see below), whose sum is σ = 230923077120. Its totient is φ = 26264964096.

The previous prime is 84071530979. The next prime is 84071530997. The reversal of 84071530992 is 29903517048.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84071530997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20518 + ... + 410565.

It is an arithmetic number, because the mean of its divisors is an integer number (2886538464).

Almost surely, 2^84071530992 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 84071530992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115461538560).

84071530992 is an abundant number, since it is smaller than the sum of its proper divisors (146851546128).

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

84071530992 is a wasteful number, since it uses less digits than its factorization.

84071530992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431350 (or 431344 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 84071530992 in words is "eighty-four billion, seventy-one million, five hundred thirty thousand, nine hundred ninety-two".