623442140255513 has 8 divisors (see below), whose sum is σ = 644968877450880. Its totient is φ = 601917318550800.

The previous prime is 623442140255443. The next prime is 623442140255621. The reversal of 623442140255513 is 315552041244326.

623442140255513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 623442140255513 - 2¹⁶ = 623442140189977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623442140255813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478210463 + ... + 479512388.

It is an arithmetic number, because the mean of its divisors is an integer number (80621109681360).

Almost surely, 2^{623442140255513} is an apocalyptic number.

It is an amenable number.

623442140255513 is a deficient number, since it is larger than the sum of its proper divisors (21526737195367).

623442140255513 is a wasteful number, since it uses less digits than its factorization.

623442140255513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957745327.

The product of its (nonzero) digits is 3456000, while the sum is 47.

Adding to 623442140255513 its reverse (315552041244326), we get a palindrome (938994181499839).

The spelling of 623442140255513 in words is "six hundred twenty-three trillion, four hundred forty-two billion, one hundred forty million, two hundred fifty-five thousand, five hundred thirteen".