623393386944 has 56 divisors (see below), whose sum is σ = 1746418247568. Its totient is φ = 195574394880.

The previous prime is 623393386937. The next prime is 623393386991. The reversal of 623393386944 is 449683393326.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95492047 + ... + 95498574.

Almost surely, 2^623393386944 is an apocalyptic number.

623393386944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

623393386944 is an abundant number, since it is smaller than the sum of its proper divisors (1123024860624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623393386944 is a wasteful number, since it uses less digits than its factorization.

623393386944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190990653 (or 190990643 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 60.

The spelling of 623393386944 in words is "six hundred twenty-three billion, three hundred ninety-three million, three hundred eighty-six thousand, nine hundred forty-four".