16426327889 has 2 divisors, whose sum is σ = 16426327890. Its totient is φ = 16426327888.

The previous prime is 16426327847. The next prime is 16426327909. The reversal of 16426327889 is 98872362461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14761035025 + 1665292864 = 121495^2 + 40808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16426327889 is a prime.

It is not a weakly prime, because it can be changed into another prime (16426027889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213163944 + 8213163945.

It is an arithmetic number, because the mean of its divisors is an integer number (8213163945).

Almost surely, 2^16426327889 is an apocalyptic number.

It is an amenable number.

16426327889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16426327889 is an equidigital number, since it uses as much as digits as its factorization.

16426327889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 56.

The spelling of 16426327889 in words is "sixteen billion, four hundred twenty-six million, three hundred twenty-seven thousand, eight hundred eighty-nine".