14787691117 has 2 divisors, whose sum is σ = 14787691118. Its totient is φ = 14787691116.

The previous prime is 14787691091. The next prime is 14787691157. The reversal of 14787691117 is 71119678741.

14787691117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11530249641 + 3257441476 = 107379^2 + 57074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14787691117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14787691157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7393845558 + 7393845559.

It is an arithmetic number, because the mean of its divisors is an integer number (7393845559).

Almost surely, 2^14787691117 is an apocalyptic number.

It is an amenable number.

14787691117 is a deficient number, since it is larger than the sum of its proper divisors (1).

14787691117 is an equidigital number, since it uses as much as digits as its factorization.

14787691117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 52.

The spelling of 14787691117 in words is "fourteen billion, seven hundred eighty-seven million, six hundred ninety-one thousand, one hundred seventeen".