647654053124 has 12 divisors (see below), whose sum is σ = 1220578792524. Its totient is φ = 298917255264.

The previous prime is 647654053117. The next prime is 647654053127. The reversal of 647654053124 is 421350456746.

It can be written as a sum of positive squares in 2 ways, for example, as 257016553024 + 390637500100 = 506968^2 + 625010^2 .

It is not an unprimeable number, because it can be changed into a prime (647654053127) 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, 6227442767 + ... + 6227442870.

It is an arithmetic number, because the mean of its divisors is an integer number (101714899377).

Almost surely, 2^647654053124 is an apocalyptic number.

It is an amenable number.

647654053124 is a deficient number, since it is larger than the sum of its proper divisors (572924739400).

647654053124 is a wasteful number, since it uses less digits than its factorization.

647654053124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12454885654 (or 12454885652 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 647654053124 in words is "six hundred forty-seven billion, six hundred fifty-four million, fifty-three thousand, one hundred twenty-four".