84457475136 has 84 divisors (see below), whose sum is σ = 242340918924. Its totient is φ = 28122393600.

The previous prime is 84457475129. The next prime is 84457475171. The reversal of 84457475136 is 63157475448.

84457475136 is a `hidden beast` number, since 84 + 4 + 5 + 7 + 47 + 513 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65946240000 + 18511235136 = 256800^2 + 136056^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464106 + ... + 619926.

Almost surely, 2^84457475136 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 84457475136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121170459462).

84457475136 is an abundant number, since it is smaller than the sum of its proper divisors (157883443788).

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

84457475136 is a wasteful number, since it uses less digits than its factorization.

84457475136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156780 (or 156767 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 84457475136 in words is "eighty-four billion, four hundred fifty-seven million, four hundred seventy-five thousand, one hundred thirty-six".