13787864971 has 2 divisors, whose sum is σ = 13787864972. Its totient is φ = 13787864970.

The previous prime is 13787864921. The next prime is 13787865017. The reversal of 13787864971 is 17946878731.

It is a strong prime.

It is an emirp because it is prime and its reverse (17946878731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13787864971 - 2⁹ = 13787864459 is a prime.

It is not a weakly prime, because it can be changed into another prime (13787864921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6893932485 + 6893932486.

It is an arithmetic number, because the mean of its divisors is an integer number (6893932486).

Almost surely, 2^13787864971 is an apocalyptic number.

13787864971 is a deficient number, since it is larger than the sum of its proper divisors (1).

13787864971 is an equidigital number, since it uses as much as digits as its factorization.

13787864971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14224896, while the sum is 61.

The spelling of 13787864971 in words is "thirteen billion, seven hundred eighty-seven million, eight hundred sixty-four thousand, nine hundred seventy-one".