14399078381 has 2 divisors, whose sum is σ = 14399078382. Its totient is φ = 14399078380.

The previous prime is 14399078363. The next prime is 14399078413. The reversal of 14399078381 is 18387099341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13279105225 + 1119973156 = 115235^2 + 33466^2 .

It is a cyclic number.

It is not a de Polignac number, because 14399078381 - 2¹⁴ = 14399061997 is a prime.

It is a super-2 number, since 2×14399078381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14399078311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7199539190 + 7199539191.

It is an arithmetic number, because the mean of its divisors is an integer number (7199539191).

Almost surely, 2^14399078381 is an apocalyptic number.

It is an amenable number.

14399078381 is a deficient number, since it is larger than the sum of its proper divisors (1).

14399078381 is an equidigital number, since it uses as much as digits as its factorization.

14399078381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 14399078381 in words is "fourteen billion, three hundred ninety-nine million, seventy-eight thousand, three hundred eighty-one".