14789877898721 has 2 divisors, whose sum is σ = 14789877898722. Its totient is φ = 14789877898720.

The previous prime is 14789877898703. The next prime is 14789877898723. The reversal of 14789877898721 is 12789877898741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10008592740496 + 4781285158225 = 3163636^2 + 2186615^2 .

It is a cyclic number.

It is not a de Polignac number, because 14789877898721 - 2⁶ = 14789877898657 is a prime.

Together with 14789877898723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14789877898723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7394938949360 + 7394938949361.

It is an arithmetic number, because the mean of its divisors is an integer number (7394938949361).

Almost surely, 2^{14789877898721} is an apocalyptic number.

It is an amenable number.

14789877898721 is a deficient number, since it is larger than the sum of its proper divisors (1).

14789877898721 is an equidigital number, since it uses as much as digits as its factorization.

14789877898721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6372753408, while the sum is 86.

The spelling of 14789877898721 in words is "fourteen trillion, seven hundred eighty-nine billion, eight hundred seventy-seven million, eight hundred ninety-eight thousand, seven hundred twenty-one".