623591212352 has 56 divisors (see below), whose sum is σ = 1248802959336. Its totient is φ = 308934033408.

The previous prime is 623591212333. The next prime is 623591212369. The reversal of 623591212352 is 253212195326.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 400960576 + 623190251776 = 20024^2 + 789424^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24814898 + ... + 24840014.

Almost surely, 2^623591212352 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 623591212352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624401479668).

623591212352 is an abundant number, since it is smaller than the sum of its proper divisors (625211746984).

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

623591212352 is a wasteful number, since it uses less digits than its factorization.

623591212352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28675 (or 28665 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

The spelling of 623591212352 in words is "six hundred twenty-three billion, five hundred ninety-one million, two hundred twelve thousand, three hundred fifty-two".