14278642061 has 2 divisors, whose sum is σ = 14278642062. Its totient is φ = 14278642060.

The previous prime is 14278642051. The next prime is 14278642069. The reversal of 14278642061 is 16024687241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14276665225 + 1976836 = 119485^2 + 1406^2 .

It is a cyclic number.

It is not a de Polignac number, because 14278642061 - 2⁶ = 14278641997 is a prime.

It is a super-3 number, since 3×14278642061³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14278642069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7139321030 + 7139321031.

It is an arithmetic number, because the mean of its divisors is an integer number (7139321031).

Almost surely, 2^14278642061 is an apocalyptic number.

It is an amenable number.

14278642061 is a deficient number, since it is larger than the sum of its proper divisors (1).

14278642061 is an equidigital number, since it uses as much as digits as its factorization.

14278642061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 14278642061 in words is "fourteen billion, two hundred seventy-eight million, six hundred forty-two thousand, sixty-one".