12638003611 has 2 divisors, whose sum is σ = 12638003612. Its totient is φ = 12638003610.

The previous prime is 12638003603. The next prime is 12638003617. The reversal of 12638003611 is 11630083621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12638003611 - 2³ = 12638003603 is a prime.

It is not a weakly prime, because it can be changed into another prime (12638003617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6319001805 + 6319001806.

It is an arithmetic number, because the mean of its divisors is an integer number (6319001806).

Almost surely, 2^12638003611 is an apocalyptic number.

12638003611 is a deficient number, since it is larger than the sum of its proper divisors (1).

12638003611 is an equidigital number, since it uses as much as digits as its factorization.

12638003611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 12638003611 in words is "twelve billion, six hundred thirty-eight million, three thousand, six hundred eleven".