648933718124 has 12 divisors (see below), whose sum is σ = 1151190637464. Its totient is φ = 320022107424.

The previous prime is 648933718117. The next prime is 648933718151. The reversal of 648933718124 is 421817339846.

It is a super-2 number, since 2×648933718124² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 648933718124.

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, 1111187582 + ... + 1111188165.

It is an arithmetic number, because the mean of its divisors is an integer number (95932553122).

Almost surely, 2^648933718124 is an apocalyptic number.

It is an amenable number.

648933718124 is a deficient number, since it is larger than the sum of its proper divisors (502256919340).

648933718124 is a wasteful number, since it uses less digits than its factorization.

648933718124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222375824 (or 2222375822 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The spelling of 648933718124 in words is "six hundred forty-eight billion, nine hundred thirty-three million, seven hundred eighteen thousand, one hundred twenty-four".