626223743648 has 24 divisors (see below), whose sum is σ = 1232906038560. Its totient is φ = 313104749760.

The previous prime is 626223743627. The next prime is 626223743659. The reversal of 626223743648 is 846347322626.

It is a Cunningham number, because it is equal to 791343²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 626223743648.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384853 + ... + 1780523.

It is an arithmetic number, because the mean of its divisors is an integer number (51371084940).

Almost surely, 2^626223743648 is an apocalyptic number.

It is an amenable number.

626223743648 is a deficient number, since it is larger than the sum of its proper divisors (606682294912).

626223743648 is a wasteful number, since it uses less digits than its factorization.

626223743648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445140 (or 445132 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 53.

The spelling of 626223743648 in words is "six hundred twenty-six billion, two hundred twenty-three million, seven hundred forty-three thousand, six hundred forty-eight".