14378799887 has 2 divisors, whose sum is σ = 14378799888. Its totient is φ = 14378799886.

The previous prime is 14378799859. The next prime is 14378799913. The reversal of 14378799887 is 78899787341.

It is a strong prime.

It is an emirp because it is prime and its reverse (78899787341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14378799887 - 2¹² = 14378795791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14378799887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14378799847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7189399943 + 7189399944.

It is an arithmetic number, because the mean of its divisors is an integer number (7189399944).

Almost surely, 2^14378799887 is an apocalyptic number.

14378799887 is a deficient number, since it is larger than the sum of its proper divisors (1).

14378799887 is an equidigital number, since it uses as much as digits as its factorization.

14378799887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170698752, while the sum is 71.

The spelling of 14378799887 in words is "fourteen billion, three hundred seventy-eight million, seven hundred ninety-nine thousand, eight hundred eighty-seven".