13270645187 has 2 divisors, whose sum is σ = 13270645188. Its totient is φ = 13270645186.

The previous prime is 13270645181. The next prime is 13270645207. The reversal of 13270645187 is 78154607231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13270645187 - 2¹² = 13270641091 is a prime.

It is a super-2 number, since 2×13270645187² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13270645181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6635322593 + 6635322594.

It is an arithmetic number, because the mean of its divisors is an integer number (6635322594).

Almost surely, 2^13270645187 is an apocalyptic number.

13270645187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13270645187 is an equidigital number, since it uses as much as digits as its factorization.

13270645187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 13270645187 in words is "thirteen billion, two hundred seventy million, six hundred forty-five thousand, one hundred eighty-seven".