647242472326 has 32 divisors (see below), whose sum is σ = 979434466560. Its totient is φ = 320775620256.

The previous prime is 647242472287. The next prime is 647242472333. The reversal of 647242472326 is 623274242746.

It is a self number, because there is not a number n which added to its sum of digits gives 647242472326.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375647701 + ... + 375649423.

It is an arithmetic number, because the mean of its divisors is an integer number (30607327080).

Almost surely, 2^647242472326 is an apocalyptic number.

647242472326 is a deficient number, since it is larger than the sum of its proper divisors (332191994234).

647242472326 is a wasteful number, since it uses less digits than its factorization.

647242472326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4108.

The product of its digits is 5419008, while the sum is 49.

The spelling of 647242472326 in words is "six hundred forty-seven billion, two hundred forty-two million, four hundred seventy-two thousand, three hundred twenty-six".