647237874483423 has 24 divisors (see below), whose sum is σ = 960171456065328. Its totient is φ = 419827891612032.

The previous prime is 647237874483401. The next prime is 647237874483461. The reversal of 647237874483423 is 324384478732746.

647237874483423 is a `hidden beast` number, since 6 + 4 + 7 + 2 + 3 + 7 + 87 + 44 + 83 + 423 = 666.

It is not a de Polignac number, because 647237874483423 - 2⁶ = 647237874483359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647237874483463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63934836 + ... + 73363062.

It is an arithmetic number, because the mean of its divisors is an integer number (40007144002722).

Almost surely, 2^{647237874483423} is an apocalyptic number.

647237874483423 is a deficient number, since it is larger than the sum of its proper divisors (312933581581905).

647237874483423 is a wasteful number, since it uses less digits than its factorization.

647237874483423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9634423 (or 9634420 counting only the distinct ones).

The product of its digits is 3641573376, while the sum is 72.

The spelling of 647237874483423 in words is "six hundred forty-seven trillion, two hundred thirty-seven billion, eight hundred seventy-four million, four hundred eighty-three thousand, four hundred twenty-three".