13970772187 has 2 divisors, whose sum is σ = 13970772188. Its totient is φ = 13970772186.

The previous prime is 13970772161. The next prime is 13970772203. The reversal of 13970772187 is 78127707931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13970772187 - 2²³ = 13962383579 is a prime.

It is not a weakly prime, because it can be changed into another prime (13970772157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985386093 + 6985386094.

It is an arithmetic number, because the mean of its divisors is an integer number (6985386094).

Almost surely, 2^13970772187 is an apocalyptic number.

13970772187 is a deficient number, since it is larger than the sum of its proper divisors (1).

13970772187 is an equidigital number, since it uses as much as digits as its factorization.

13970772187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1037232, while the sum is 52.

The spelling of 13970772187 in words is "thirteen billion, nine hundred seventy million, seven hundred seventy-two thousand, one hundred eighty-seven".