8189521434 has 12 divisors (see below), whose sum is σ = 17743963146. Its totient is φ = 2729840472.

The previous prime is 8189521423. The next prime is 8189521447. The reversal of 8189521434 is 4341259818.

8189521434 is a `hidden beast` number, since 8 + 1 + 89 + 521 + 43 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8118911025 + 70610409 = 90105^2 + 8403^2 .

It is a super-2 number, since 2×8189521434² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8189521434.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 227486689 + ... + 227486724.

Almost surely, 2^8189521434 is an apocalyptic number.

8189521434 is an abundant number, since it is smaller than the sum of its proper divisors (9554441712).

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

8189521434 is a wasteful number, since it uses less digits than its factorization.

8189521434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454973421 (or 454973418 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 8189521434 is about 90495.9746839604. The cubic root of 8189521434 is about 2015.6703521968.

The spelling of 8189521434 in words is "eight billion, one hundred eighty-nine million, five hundred twenty-one thousand, four hundred thirty-four".