14678278019 has 2 divisors, whose sum is σ = 14678278020. Its totient is φ = 14678278018.

The previous prime is 14678278003. The next prime is 14678278033. The reversal of 14678278019 is 91087287641.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14678278019 - 2⁴ = 14678278003 is a prime.

It is a super-2 number, since 2×14678278019² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (14678278039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7339139009 + 7339139010.

It is an arithmetic number, because the mean of its divisors is an integer number (7339139010).

Almost surely, 2^14678278019 is an apocalyptic number.

14678278019 is a deficient number, since it is larger than the sum of its proper divisors (1).

14678278019 is an equidigital number, since it uses as much as digits as its factorization.

14678278019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 14678278019 in words is "fourteen billion, six hundred seventy-eight million, two hundred seventy-eight thousand, nineteen".