648317442933 has 24 divisors (see below), whose sum is σ = 946327651776. Its totient is φ = 427676942400.

The previous prime is 648317442893. The next prime is 648317442943. The reversal of 648317442933 is 339244713846.

It is a happy number.

648317442933 is a `hidden beast` number, since 6 + 48 + 3 + 174 + 429 + 3 + 3 = 666.

It is not a de Polignac number, because 648317442933 - 2¹⁰ = 648317441909 is a prime.

It is a super-2 number, since 2×648317442933² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 648317442933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648317442943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461883 + ... + 1228808.

It is an arithmetic number, because the mean of its divisors is an integer number (39430318824).

Almost surely, 2^648317442933 is an apocalyptic number.

It is an amenable number.

648317442933 is a deficient number, since it is larger than the sum of its proper divisors (298010208843).

648317442933 is a wasteful number, since it uses less digits than its factorization.

648317442933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691145 (or 1691142 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 648317442933 in words is "six hundred forty-eight billion, three hundred seventeen million, four hundred forty-two thousand, nine hundred thirty-three".