14281216861 has 2 divisors, whose sum is σ = 14281216862. Its totient is φ = 14281216860.

The previous prime is 14281216853. The next prime is 14281216903. The reversal of 14281216861 is 16861218241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10689492100 + 3591724761 = 103390^2 + 59931^2 .

It is a cyclic number.

It is not a de Polignac number, because 14281216861 - 2³ = 14281216853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14281216841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7140608430 + 7140608431.

It is an arithmetic number, because the mean of its divisors is an integer number (7140608431).

Almost surely, 2^14281216861 is an apocalyptic number.

It is an amenable number.

14281216861 is a deficient number, since it is larger than the sum of its proper divisors (1).

14281216861 is an equidigital number, since it uses as much as digits as its factorization.

14281216861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 40.

The spelling of 14281216861 in words is "fourteen billion, two hundred eighty-one million, two hundred sixteen thousand, eight hundred sixty-one".