8189191036 has 12 divisors (see below), whose sum is σ = 15433475512. Its totient is φ = 3779626608.

The previous prime is 8189191001. The next prime is 8189191039. The reversal of 8189191036 is 6301919818.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189191039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78742170 + ... + 78742273.

Almost surely, 2^8189191036 is an apocalyptic number.

It is an amenable number.

8189191036 is a deficient number, since it is larger than the sum of its proper divisors (7244284476).

8189191036 is a wasteful number, since it uses less digits than its factorization.

8189191036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157484460 (or 157484458 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 8189191036 is about 90494.1491810382. The cubic root of 8189191036 is about 2015.6432451017.

The spelling of 8189191036 in words is "eight billion, one hundred eighty-nine million, one hundred ninety-one thousand, thirty-six".