623340796815820 has 96 divisors (see below), whose sum is σ = 1356558161688576. Its totient is φ = 240344955302400.

The previous prime is 623340796815811. The next prime is 623340796815829. The reversal of 623340796815820 is 28518697043326.

It is an interprime number because it is at equal distance from previous prime (623340796815811) and next prime (623340796815829).

It is not an unprimeable number, because it can be changed into a prime (623340796815829) 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, 281170080 + ... + 283378360.

It is an arithmetic number, because the mean of its divisors is an integer number (14130814184256).

It is a 1-persistent number, because it is pandigital, but 2⋅623340796815820 = 1246681593631640 is not.

Almost surely, 2^{623340796815820} 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 623340796815820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678279080844288).

623340796815820 is an abundant number, since it is smaller than the sum of its proper divisors (733217364872756).

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

623340796815820 is a wasteful number, since it uses less digits than its factorization.

623340796815820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210111 (or 2210109 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 623340796815820 in words is "six hundred twenty-three trillion, three hundred forty billion, seven hundred ninety-six million, eight hundred fifteen thousand, eight hundred twenty".