13631604799 has 2 divisors, whose sum is σ = 13631604800. Its totient is φ = 13631604798.

The previous prime is 13631604619. The next prime is 13631604821. The reversal of 13631604799 is 99740613631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (99740613631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13631604799 is a prime.

It is a super-2 number, since 2×13631604799² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13631604199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6815802399 + 6815802400.

It is an arithmetic number, because the mean of its divisors is an integer number (6815802400).

Almost surely, 2^13631604799 is an apocalyptic number.

13631604799 is a deficient number, since it is larger than the sum of its proper divisors (1).

13631604799 is an equidigital number, since it uses as much as digits as its factorization.

13631604799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 13631604799 in words is "thirteen billion, six hundred thirty-one million, six hundred four thousand, seven hundred ninety-nine".