13642216187 has 2 divisors, whose sum is σ = 13642216188. Its totient is φ = 13642216186.

The previous prime is 13642216127. The next prime is 13642216207. The reversal of 13642216187 is 78161224631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13642216187 - 2¹⁰ = 13642215163 is a prime.

It is a super-2 number, since 2×13642216187² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13642216127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6821108093 + 6821108094.

It is an arithmetic number, because the mean of its divisors is an integer number (6821108094).

Almost surely, 2^13642216187 is an apocalyptic number.

13642216187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13642216187 is an equidigital number, since it uses as much as digits as its factorization.

13642216187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The spelling of 13642216187 in words is "thirteen billion, six hundred forty-two million, two hundred sixteen thousand, one hundred eighty-seven".