12623388637 has 2 divisors, whose sum is σ = 12623388638. Its totient is φ = 12623388636.

The previous prime is 12623388623. The next prime is 12623388643. The reversal of 12623388637 is 73688332621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12375672516 + 247716121 = 111246^2 + 15739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12623388637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12623388677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6311694318 + 6311694319.

It is an arithmetic number, because the mean of its divisors is an integer number (6311694319).

Almost surely, 2^12623388637 is an apocalyptic number.

It is an amenable number.

12623388637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12623388637 is an equidigital number, since it uses as much as digits as its factorization.

12623388637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 49.

The spelling of 12623388637 in words is "twelve billion, six hundred twenty-three million, three hundred eighty-eight thousand, six hundred thirty-seven".