623645963712 has 224 divisors, whose sum is σ = 1853530862400. Its totient is φ = 205604352000.

The previous prime is 623645963693. The next prime is 623645963719. The reversal of 623645963712 is 217369546326.

623645963712 is a `hidden beast` number, since 6 + 2 + 3 + 6 + 4 + 596 + 37 + 12 = 666.

623645963712 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623645963719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291286162 + ... + 291288302.

It is an arithmetic number, because the mean of its divisors is an integer number (8274691350).

Almost surely, 2^623645963712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623645963712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (926765431200).

623645963712 is an abundant number, since it is smaller than the sum of its proper divisors (1229884898688).

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

623645963712 is a wasteful number, since it uses less digits than its factorization.

623645963712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932 (or 3916 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The spelling of 623645963712 in words is "six hundred twenty-three billion, six hundred forty-five million, nine hundred sixty-three thousand, seven hundred twelve".