8193128190 has 32 divisors (see below), whose sum is σ = 21176086176. Its totient is φ = 2016769920.

The previous prime is 8193128159. The next prime is 8193128221. The reversal of 8193128190 is 918213918.

It is an interprime number because it is at equal distance from previous prime (8193128159) and next prime (8193128221).

It is a super-2 number, since 2×8193128190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10503621 + ... + 10504400.

It is an arithmetic number, because the mean of its divisors is an integer number (661752693).

Almost surely, 2^8193128190 is an apocalyptic number.

8193128190 is an abundant number, since it is smaller than the sum of its proper divisors (12982957986).

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

8193128190 is a wasteful number, since it uses less digits than its factorization.

8193128190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21008044.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 8193128190 is about 90515.9002054335. The cubic root of 8193128190 is about 2015.9662166210.

The spelling of 8193128190 in words is "eight billion, one hundred ninety-three million, one hundred twenty-eight thousand, one hundred ninety".