623610655964 has 24 divisors (see below), whose sum is σ = 1102922926560. Its totient is φ = 308495363904.

The previous prime is 623610655957. The next prime is 623610655973. The reversal of 623610655964 is 469556016326.

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 7 ways as a sum of consecutive naturals, for example, 242099 + ... + 1142730.

It is an arithmetic number, because the mean of its divisors is an integer number (45955121940).

Almost surely, 2^623610655964 is an apocalyptic number.

It is an amenable number.

623610655964 is a deficient number, since it is larger than the sum of its proper divisors (479312270596).

623610655964 is a wasteful number, since it uses less digits than its factorization.

623610655964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386029 (or 1386027 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 53.

The spelling of 623610655964 in words is "six hundred twenty-three billion, six hundred ten million, six hundred fifty-five thousand, nine hundred sixty-four".