623109023056 has 20 divisors (see below), whose sum is σ = 1300140942772. Its totient is φ = 287588779776.

The previous prime is 623109023051. The next prime is 623109023057. The reversal of 623109023056 is 650320901326.

It can be written as a sum of positive squares in 2 ways, for example, as 131708023056 + 491401000000 = 362916^2 + 701000^2 .

It is a super-2 number, since 2×623109023056² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623109023051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1497858021 + ... + 1497858436.

Almost surely, 2^623109023056 is an apocalyptic number.

It is an amenable number.

623109023056 is an abundant number, since it is smaller than the sum of its proper divisors (677031919716).

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

623109023056 is a wasteful number, since it uses less digits than its factorization.

623109023056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995716478 (or 2995716472 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 623109023056 in words is "six hundred twenty-three billion, one hundred nine million, twenty-three thousand, fifty-six".