14387381947 has 2 divisors, whose sum is σ = 14387381948. Its totient is φ = 14387381946.

The previous prime is 14387381887. The next prime is 14387381959. The reversal of 14387381947 is 74918378341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14387381947 - 2¹⁹ = 14386857659 is a prime.

It is not a weakly prime, because it can be changed into another prime (14387381347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7193690973 + 7193690974.

It is an arithmetic number, because the mean of its divisors is an integer number (7193690974).

Almost surely, 2^14387381947 is an apocalyptic number.

14387381947 is a deficient number, since it is larger than the sum of its proper divisors (1).

14387381947 is an equidigital number, since it uses as much as digits as its factorization.

14387381947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 55.

The spelling of 14387381947 in words is "fourteen billion, three hundred eighty-seven million, three hundred eighty-one thousand, nine hundred forty-seven".