12372805637 has 2 divisors, whose sum is σ = 12372805638. Its totient is φ = 12372805636.

The previous prime is 12372805573. The next prime is 12372805657. The reversal of 12372805637 is 73650827321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6213538276 + 6159267361 = 78826^2 + 78481^2 .

It is a cyclic number.

It is not a de Polignac number, because 12372805637 - 2⁶ = 12372805573 is a prime.

It is a super-5 number, since 5×12372805637⁵ (a number of 52 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12372805657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6186402818 + 6186402819.

It is an arithmetic number, because the mean of its divisors is an integer number (6186402819).

Almost surely, 2^12372805637 is an apocalyptic number.

It is an amenable number.

12372805637 is a deficient number, since it is larger than the sum of its proper divisors (1).

12372805637 is an equidigital number, since it uses as much as digits as its factorization.

12372805637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 12372805637 in words is "twelve billion, three hundred seventy-two million, eight hundred five thousand, six hundred thirty-seven".