64673482731 has 16 divisors (see below), whose sum is σ = 101306714880. Its totient is φ = 36180969120.

The previous prime is 64673482717. The next prime is 64673482751. The reversal of 64673482731 is 13728437646.

It is not a de Polignac number, because 64673482731 - 2⁷ = 64673482603 is a prime.

It is a super-2 number, since 2×64673482731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64673482751) 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, 75376591 + ... + 75377448.

It is an arithmetic number, because the mean of its divisors is an integer number (6331669680).

Almost surely, 2^64673482731 is an apocalyptic number.

64673482731 is a deficient number, since it is larger than the sum of its proper divisors (36633232149).

64673482731 is a wasteful number, since it uses less digits than its factorization.

64673482731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150754066.

The product of its digits is 4064256, while the sum is 51.

The spelling of 64673482731 in words is "sixty-four billion, six hundred seventy-three million, four hundred eighty-two thousand, seven hundred thirty-one".