8190636012 has 72 divisors (see below), whose sum is σ = 22316046480. Its totient is φ = 2518012800.

The previous prime is 8190636011. The next prime is 8190636029. The reversal of 8190636012 is 2106360918.

8190636012 is a `hidden beast` number, since 8 + 1 + 9 + 0 + 636 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (8190636011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 582262 + ... + 596162.

It is an arithmetic number, because the mean of its divisors is an integer number (309945090).

Almost surely, 2^8190636012 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 8190636012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11158023240).

8190636012 is an abundant number, since it is smaller than the sum of its proper divisors (14125410468).

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

8190636012 is a wasteful number, since it uses less digits than its factorization.

8190636012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15183 (or 15178 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 8190636012 is about 90502.1326378556. The cubic root of 8190636012 is about 2015.7617909919.

The spelling of 8190636012 in words is "eight billion, one hundred ninety million, six hundred thirty-six thousand, twelve".