16398422839 has 2 divisors, whose sum is σ = 16398422840. Its totient is φ = 16398422838.

The previous prime is 16398422791. The next prime is 16398422863. The reversal of 16398422839 is 93822489361.

It is a strong prime.

It is an emirp because it is prime and its reverse (93822489361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16398422839 - 2³¹ = 14250939191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16398422839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16398422869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8199211419 + 8199211420.

It is an arithmetic number, because the mean of its divisors is an integer number (8199211420).

Almost surely, 2^16398422839 is an apocalyptic number.

16398422839 is a deficient number, since it is larger than the sum of its proper divisors (1).

16398422839 is an equidigital number, since it uses as much as digits as its factorization.

16398422839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4478976, while the sum is 55.

The spelling of 16398422839 in words is "sixteen billion, three hundred ninety-eight million, four hundred twenty-two thousand, eight hundred thirty-nine".