13601857187 has 2 divisors, whose sum is σ = 13601857188. Its totient is φ = 13601857186.

The previous prime is 13601857117. The next prime is 13601857207. The reversal of 13601857187 is 78175810631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13601857187 is a prime.

It is not a weakly prime, because it can be changed into another prime (13601857117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6800928593 + 6800928594.

It is an arithmetic number, because the mean of its divisors is an integer number (6800928594).

Almost surely, 2^13601857187 is an apocalyptic number.

13601857187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13601857187 is an equidigital number, since it uses as much as digits as its factorization.

13601857187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 13601857187 in words is "thirteen billion, six hundred one million, eight hundred fifty-seven thousand, one hundred eighty-seven".