84991933725570 has 96 divisors (see below), whose sum is σ = 228159365151744. Its totient is φ = 21928404009600.

The previous prime is 84991933725563. The next prime is 84991933725623. The reversal of 84991933725570 is 7552733919948.

84991933725570 is a `hidden beast` number, since 8 + 4 + 9 + 9 + 19 + 3 + 37 + 2 + 5 + 570 = 666.

84991933725570 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8782084 + ... + 15719696.

It is an arithmetic number, because the mean of its divisors is an integer number (2376660053664).

Almost surely, 2^{84991933725570} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84991933725570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114079682575872).

84991933725570 is an abundant number, since it is smaller than the sum of its proper divisors (143167431426174).

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

84991933725570 is a wasteful number, since it uses less digits than its factorization.

84991933725570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942048 (or 6942045 counting only the distinct ones).

The product of its (nonzero) digits is 514382400, while the sum is 72.

The spelling of 84991933725570 in words is "eighty-four trillion, nine hundred ninety-one billion, nine hundred thirty-three million, seven hundred twenty-five thousand, five hundred seventy".