6495032189 has 4 divisors (see below), whose sum is σ = 6877092924. Its totient is φ = 6112971456.

The previous prime is 6495032171. The next prime is 6495032191. The reversal of 6495032189 is 9812305946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5020856164 + 1474176025 = 70858^2 + 38395^2 .

It is a cyclic number.

It is not a de Polignac number, because 6495032189 - 2¹² = 6495028093 is a prime.

It is a super-2 number, since 2×6495032189² = 84370886272292263442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6495032119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191030342 + ... + 191030375.

It is an arithmetic number, because the mean of its divisors is an integer number (1719273231).

Almost surely, 2^6495032189 is an apocalyptic number.

It is an amenable number.

6495032189 is a deficient number, since it is larger than the sum of its proper divisors (382060735).

6495032189 is a wasteful number, since it uses less digits than its factorization.

6495032189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382060734.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 6495032189 is about 80591.7625381155. The cubic root of 6495032189 is about 1865.7800108229.

The spelling of 6495032189 in words is "six billion, four hundred ninety-five million, thirty-two thousand, one hundred eighty-nine".