2668625623 has 16 divisors (see below), whose sum is σ = 2862097920. Its totient is φ = 2482137504.

The previous prime is 2668625599. The next prime is 2668625627. The reversal of 2668625623 is 3265268662.

It is a de Polignac number, because none of the positive numbers 2^k-2668625623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668625627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220590 + ... + 232372.

It is an arithmetic number, because the mean of its divisors is an integer number (178881120).

Almost surely, 2^2668625623 is an apocalyptic number.

2668625623 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2668625623 is a deficient number, since it is larger than the sum of its proper divisors (193472297).

2668625623 is a wasteful number, since it uses less digits than its factorization.

2668625623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12078.

The product of its digits is 1244160, while the sum is 46.

The square root of 2668625623 is about 51658.7419804238. The cubic root of 2668625623 is about 1387.0620317007.

The spelling of 2668625623 in words is "two billion, six hundred sixty-eight million, six hundred twenty-five thousand, six hundred twenty-three".