623431756320 has 96 divisors (see below), whose sum is σ = 1970900019648. Its totient is φ = 165648258048.

The previous prime is 623431756253. The next prime is 623431756333. The reversal of 623431756320 is 23657134326.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2211474 + ... + 2477393.

It is an arithmetic number, because the mean of its divisors is an integer number (20530208538).

Almost surely, 2^623431756320 is an apocalyptic number.

623431756320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

623431756320 is an abundant number, since it is smaller than the sum of its proper divisors (1347468263328).

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

623431756320 is a wasteful number, since it uses less digits than its factorization.

623431756320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689162 (or 4689154 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 623431756320 in words is "six hundred twenty-three billion, four hundred thirty-one million, seven hundred fifty-six thousand, three hundred twenty".