6497872466 has 4 divisors (see below), whose sum is σ = 9746808702. Its totient is φ = 3248936232.

The previous prime is 6497872421. The next prime is 6497872483. The reversal of 6497872466 is 6642787946.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6642787946 = 2 ⋅3321393973.

It can be written as a sum of positive squares in only one way, i.e., 4703079241 + 1794793225 = 68579^2 + 42365^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1624468115 + ... + 1624468118.

Almost surely, 2^6497872466 is an apocalyptic number.

6497872466 is a deficient number, since it is larger than the sum of its proper divisors (3248936236).

6497872466 is a wasteful number, since it uses less digits than its factorization.

6497872466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248936235.

The product of its digits is 24385536, while the sum is 59.

The square root of 6497872466 is about 80609.3819973829. The cubic root of 6497872466 is about 1866.0519396663.

The spelling of 6497872466 in words is "six billion, four hundred ninety-seven million, eight hundred seventy-two thousand, four hundred sixty-six".