14278448293 has 2 divisors, whose sum is σ = 14278448294. Its totient is φ = 14278448292.

The previous prime is 14278448243. The next prime is 14278448311. The reversal of 14278448293 is 39284487241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8299756609 + 5978691684 = 91103^2 + 77322^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14278448293 is a prime.

It is a super-2 number, since 2×14278448293² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14278448293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14278448243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7139224146 + 7139224147.

It is an arithmetic number, because the mean of its divisors is an integer number (7139224147).

Almost surely, 2^14278448293 is an apocalyptic number.

It is an amenable number.

14278448293 is a deficient number, since it is larger than the sum of its proper divisors (1).

14278448293 is an equidigital number, since it uses as much as digits as its factorization.

14278448293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 52.

The spelling of 14278448293 in words is "fourteen billion, two hundred seventy-eight million, four hundred forty-eight thousand, two hundred ninety-three".