13641520507 has 2 divisors, whose sum is σ = 13641520508. Its totient is φ = 13641520506.

The previous prime is 13641520489. The next prime is 13641520517. The reversal of 13641520507 is 70502514631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13641520507 - 2²⁷ = 13507302779 is a prime.

It is not a weakly prime, because it can be changed into another prime (13641520517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820760253 + 6820760254.

It is an arithmetic number, because the mean of its divisors is an integer number (6820760254).

Almost surely, 2^13641520507 is an apocalyptic number.

13641520507 is a deficient number, since it is larger than the sum of its proper divisors (1).

13641520507 is an equidigital number, since it uses as much as digits as its factorization.

13641520507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 13641520507 in words is "thirteen billion, six hundred forty-one million, five hundred twenty thousand, five hundred seven".