13601857117 has 2 divisors, whose sum is σ = 13601857118. Its totient is φ = 13601857116.

The previous prime is 13601857103. The next prime is 13601857187. The reversal of 13601857117 is 71175810631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13599991161 + 1865956 = 116619^2 + 1366^2 .

It is an emirp because it is prime and its reverse (71175810631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13601857117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13601857117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13601857187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6800928558 + 6800928559.

It is an arithmetic number, because the mean of its divisors is an integer number (6800928559).

Almost surely, 2^13601857117 is an apocalyptic number.

It is an amenable number.

13601857117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13601857117 is an equidigital number, since it uses as much as digits as its factorization.

13601857117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 40.

The spelling of 13601857117 in words is "thirteen billion, six hundred one million, eight hundred fifty-seven thousand, one hundred seventeen".