6497811582 has 16 divisors (see below), whose sum is σ = 12997080720. Its totient is φ = 2165694272.

The previous prime is 6497811563. The next prime is 6497811631. The reversal of 6497811582 is 2851187946.

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, 2248 + ... + 114020.

It is an arithmetic number, because the mean of its divisors is an integer number (812317545).

Almost surely, 2^6497811582 is an apocalyptic number.

6497811582 is an abundant number, since it is smaller than the sum of its proper divisors (6499269138).

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

6497811582 is a wasteful number, since it uses less digits than its factorization.

6497811582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121467.

The product of its digits is 967680, while the sum is 51.

The square root of 6497811582 is about 80609.0043481496. The cubic root of 6497811582 is about 1866.0461114478.

The spelling of 6497811582 in words is "six billion, four hundred ninety-seven million, eight hundred eleven thousand, five hundred eighty-two".