623349375390720 has 1056 divisors, whose sum is σ = 2483572073463936. Its totient is φ = 148637505945600.

The previous prime is 623349375390713. The next prime is 623349375390767. The reversal of 623349375390720 is 27093573943326.

623349375390720 is a `hidden beast` number, since 6 + 2 + 3 + 3 + 4 + 93 + 7 + 539 + 0 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1056).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 834458022 + ... + 835204698.

Almost surely, 2^{623349375390720} is an apocalyptic number.

623349375390720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623349375390720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1241786036731968).

623349375390720 is an abundant number, since it is smaller than the sum of its proper divisors (1860222698073216).

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

623349375390720 is a wasteful number, since it uses less digits than its factorization.

623349375390720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746789 (or 746759 counting only the distinct ones).

The product of its (nonzero) digits is 154314720, while the sum is 63.

The spelling of 623349375390720 in words is "six hundred twenty-three trillion, three hundred forty-nine billion, three hundred seventy-five million, three hundred ninety thousand, seven hundred twenty".