13631604619 has 2 divisors, whose sum is σ = 13631604620. Its totient is φ = 13631604618.

The previous prime is 13631604607. The next prime is 13631604799. The reversal of 13631604619 is 91640613631.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13631604619 - 2²⁵ = 13598050187 is a prime.

It is a super-2 number, since 2×13631604619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13631674619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815802309 + 6815802310.

It is an arithmetic number, because the mean of its divisors is an integer number (6815802310).

Almost surely, 2^13631604619 is an apocalyptic number.

13631604619 is a deficient number, since it is larger than the sum of its proper divisors (1).

13631604619 is an equidigital number, since it uses as much as digits as its factorization.

13631604619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 40.

The spelling of 13631604619 in words is "thirteen billion, six hundred thirty-one million, six hundred four thousand, six hundred nineteen".