623264885593 has 32 divisors (see below), whose sum is σ = 765773568000. Its totient is φ = 495094305024.

The previous prime is 623264885539. The next prime is 623264885597. The reversal of 623264885593 is 395588462326.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623264885593 is a prime.

It is a super-2 number, since 2×623264885593² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (623264885597) 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, 21185508 + ... + 21214906.

It is an arithmetic number, because the mean of its divisors is an integer number (23930424000).

Almost surely, 2^623264885593 is an apocalyptic number.

It is an amenable number.

623264885593 is a deficient number, since it is larger than the sum of its proper divisors (142508682407).

623264885593 is a wasteful number, since it uses less digits than its factorization.

623264885593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32149.

The product of its digits is 74649600, while the sum is 61.

The spelling of 623264885593 in words is "six hundred twenty-three billion, two hundred sixty-four million, eight hundred eighty-five thousand, five hundred ninety-three".