14401021399 has 2 divisors, whose sum is σ = 14401021400. Its totient is φ = 14401021398.

The previous prime is 14401021379. The next prime is 14401021423. The reversal of 14401021399 is 99312010441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14401021399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14401021379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7200510699 + 7200510700.

It is an arithmetic number, because the mean of its divisors is an integer number (7200510700).

Almost surely, 2^14401021399 is an apocalyptic number.

14401021399 is a deficient number, since it is larger than the sum of its proper divisors (1).

14401021399 is an equidigital number, since it uses as much as digits as its factorization.

14401021399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 14401021399 in words is "fourteen billion, four hundred one million, twenty-one thousand, three hundred ninety-nine".