6495646534 has 16 divisors (see below), whose sum is σ = 10496399760. Its totient is φ = 2997010080.

The previous prime is 6495646471. The next prime is 6495646543. The reversal of 6495646534 is 4356465946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43437 + ... + 121975.

It is an arithmetic number, because the mean of its divisors is an integer number (656024985).

Almost surely, 2^6495646534 is an apocalyptic number.

6495646534 is a deficient number, since it is larger than the sum of its proper divisors (4000753226).

6495646534 is a wasteful number, since it uses less digits than its factorization.

6495646534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81735.

The product of its digits is 9331200, while the sum is 52.

The square root of 6495646534 is about 80595.5739107304. The cubic root of 6495646534 is about 1865.8388350878.

The spelling of 6495646534 in words is "six billion, four hundred ninety-five million, six hundred forty-six thousand, five hundred thirty-four".