12642925237 has 2 divisors, whose sum is σ = 12642925238. Its totient is φ = 12642925236.

The previous prime is 12642925201. The next prime is 12642925297. The reversal of 12642925237 is 73252924621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10902283396 + 1740641841 = 104414^2 + 41721^2 .

It is a cyclic number.

It is not a de Polignac number, because 12642925237 - 2¹⁹ = 12642400949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12642925193 and 12642925202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642925297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321462618 + 6321462619.

It is an arithmetic number, because the mean of its divisors is an integer number (6321462619).

Almost surely, 2^12642925237 is an apocalyptic number.

It is an amenable number.

12642925237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642925237 is an equidigital number, since it uses as much as digits as its factorization.

12642925237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The spelling of 12642925237 in words is "twelve billion, six hundred forty-two million, nine hundred twenty-five thousand, two hundred thirty-seven".