64971532424 has 16 divisors (see below), whose sum is σ = 122331340800. Its totient is φ = 32349841552.

The previous prime is 64971532421. The next prime is 64971532427. The reversal of 64971532424 is 42423517946.

It is an interprime number because it is at equal distance from previous prime (64971532421) and next prime (64971532427).

It is not an unprimeable number, because it can be changed into a prime (64971532421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16988552 + ... + 16992375.

It is an arithmetic number, because the mean of its divisors is an integer number (7645708800).

Almost surely, 2^64971532424 is an apocalyptic number.

It is an amenable number.

64971532424 is a deficient number, since it is larger than the sum of its proper divisors (57359808376).

64971532424 is a wasteful number, since it uses less digits than its factorization.

64971532424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33981172 (or 33981168 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 47.

The spelling of 64971532424 in words is "sixty-four billion, nine hundred seventy-one million, five hundred thirty-two thousand, four hundred twenty-four".