623354790560 has 96 divisors (see below), whose sum is σ = 1499102277120. Its totient is φ = 244896196608.

The previous prime is 623354790557. The next prime is 623354790593. The reversal of 623354790560 is 65097453326.

It is a super-2 number, since 2×623354790560² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 623354790499 and 623354790508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2679869 + ... + 2903171.

It is an arithmetic number, because the mean of its divisors is an integer number (15615648720).

Almost surely, 2^623354790560 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 623354790560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (749551138560).

623354790560 is an abundant number, since it is smaller than the sum of its proper divisors (875747486560).

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

623354790560 is a wasteful number, since it uses less digits than its factorization.

623354790560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223630 (or 223622 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 623354790560 in words is "six hundred twenty-three billion, three hundred fifty-four million, seven hundred ninety thousand, five hundred sixty".