16427888591 has 2 divisors, whose sum is σ = 16427888592. Its totient is φ = 16427888590.

The previous prime is 16427888567. The next prime is 16427888641. The reversal of 16427888591 is 19588872461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16427888591 - 2⁶ = 16427888527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16427888591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16427888891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213944295 + 8213944296.

It is an arithmetic number, because the mean of its divisors is an integer number (8213944296).

Almost surely, 2^16427888591 is an apocalyptic number.

16427888591 is a deficient number, since it is larger than the sum of its proper divisors (1).

16427888591 is an equidigital number, since it uses as much as digits as its factorization.

16427888591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 59.

The spelling of 16427888591 in words is "sixteen billion, four hundred twenty-seven million, eight hundred eighty-eight thousand, five hundred ninety-one".