6464972373 has 16 divisors (see below), whose sum is σ = 8832934656. Its totient is φ = 4203560960.

The previous prime is 6464972363. The next prime is 6464972387. The reversal of 6464972373 is 3732794646.

It is a cyclic number.

It is not a de Polignac number, because 6464972373 - 2⁶ = 6464972309 is a prime.

It is a super-2 number, since 2×6464972373² = 83591735567306502258, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6464972363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543061 + ... + 554837.

It is an arithmetic number, because the mean of its divisors is an integer number (552058416).

Almost surely, 2^6464972373 is an apocalyptic number.

It is an amenable number.

6464972373 is a deficient number, since it is larger than the sum of its proper divisors (2367962283).

6464972373 is a wasteful number, since it uses less digits than its factorization.

6464972373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16284.

The product of its digits is 4572288, while the sum is 51.

The square root of 6464972373 is about 80405.0519121778. The cubic root of 6464972373 is about 1862.8972050040.

The spelling of 6464972373 in words is "six billion, four hundred sixty-four million, nine hundred seventy-two thousand, three hundred seventy-three".