8190189538 has 16 divisors (see below), whose sum is σ = 12632670144. Its totient is φ = 3979568880.

The previous prime is 8190189529. The next prime is 8190189559. The reversal of 8190189538 is 8359810918.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5718 + ... + 128113.

It is an arithmetic number, because the mean of its divisors is an integer number (789541884).

Almost surely, 2^8190189538 is an apocalyptic number.

8190189538 is a deficient number, since it is larger than the sum of its proper divisors (4442480606).

8190189538 is a wasteful number, since it uses less digits than its factorization.

8190189538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134697.

The product of its (nonzero) digits is 622080, while the sum is 52.

The square root of 8190189538 is about 90499.6659551846. The cubic root of 8190189538 is about 2015.7251637352.

The spelling of 8190189538 in words is "eight billion, one hundred ninety million, one hundred eighty-nine thousand, five hundred thirty-eight".