12437681923 has 2 divisors, whose sum is σ = 12437681924. Its totient is φ = 12437681922.

The previous prime is 12437681909. The next prime is 12437681929. The reversal of 12437681923 is 32918673421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12437681923 - 2²⁹ = 11900811011 is a prime.

It is not a weakly prime, because it can be changed into another prime (12437681929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6218840961 + 6218840962.

It is an arithmetic number, because the mean of its divisors is an integer number (6218840962).

Almost surely, 2^12437681923 is an apocalyptic number.

12437681923 is a deficient number, since it is larger than the sum of its proper divisors (1).

12437681923 is an equidigital number, since it uses as much as digits as its factorization.

12437681923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 46.

The spelling of 12437681923 in words is "twelve billion, four hundred thirty-seven million, six hundred eighty-one thousand, nine hundred twenty-three".