11636463613 has 2 divisors, whose sum is σ = 11636463614. Its totient is φ = 11636463612.

The previous prime is 11636463539. The next prime is 11636463647. The reversal of 11636463613 is 31636463611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8183373444 + 3453090169 = 90462^2 + 58763^2 .

It is a cyclic number.

It is not a de Polignac number, because 11636463613 - 2⁹ = 11636463101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11636463653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5818231806 + 5818231807.

It is an arithmetic number, because the mean of its divisors is an integer number (5818231807).

Almost surely, 2^11636463613 is an apocalyptic number.

It is an amenable number.

11636463613 is a deficient number, since it is larger than the sum of its proper divisors (1).

11636463613 is an equidigital number, since it uses as much as digits as its factorization.

11636463613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The spelling of 11636463613 in words is "eleven billion, six hundred thirty-six million, four hundred sixty-three thousand, six hundred thirteen".