6394512190 has 16 divisors (see below), whose sum is σ = 12556496880. Its totient is φ = 2325277120.

The previous prime is 6394512181. The next prime is 6394512221. The reversal of 6394512190 is 912154936.

It is a super-2 number, since 2×6394512190² = 81779572296117192200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29065855 + ... + 29066074.

It is an arithmetic number, because the mean of its divisors is an integer number (784781055).

Almost surely, 2^6394512190 is an apocalyptic number.

6394512190 is a deficient number, since it is larger than the sum of its proper divisors (6161984690).

6394512190 is a wasteful number, since it uses less digits than its factorization.

6394512190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58131947.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 6394512190 is about 79965.6938317926. The cubic root of 6394512190 is about 1856.1047117446.

The spelling of 6394512190 in words is "six billion, three hundred ninety-four million, five hundred twelve thousand, one hundred ninety".