14728694891 has 2 divisors, whose sum is σ = 14728694892. Its totient is φ = 14728694890.

The previous prime is 14728694867. The next prime is 14728694917. The reversal of 14728694891 is 19849682741.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 14728694891 - 2²² = 14724500587 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14728694891.

It is not a weakly prime, because it can be changed into another prime (14728694801) 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, 7364347445 + 7364347446.

It is an arithmetic number, because the mean of its divisors is an integer number (7364347446).

Almost surely, 2^14728694891 is an apocalyptic number.

14728694891 is a deficient number, since it is larger than the sum of its proper divisors (1).

14728694891 is an equidigital number, since it uses as much as digits as its factorization.

14728694891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 59.

The spelling of 14728694891 in words is "fourteen billion, seven hundred twenty-eight million, six hundred ninety-four thousand, eight hundred ninety-one".