16442040019 has 2 divisors, whose sum is σ = 16442040020. Its totient is φ = 16442040018.

The previous prime is 16442039953. The next prime is 16442040023. The reversal of 16442040019 is 91004024461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16442040019 - 2²⁹ = 15905169107 is a prime.

It is a super-3 number, since 3×16442040019³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (16442040049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8221020009 + 8221020010.

It is an arithmetic number, because the mean of its divisors is an integer number (8221020010).

Almost surely, 2^16442040019 is an apocalyptic number.

16442040019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16442040019 is an equidigital number, since it uses as much as digits as its factorization.

16442040019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 16442040019 in words is "sixteen billion, four hundred forty-two million, forty thousand, nineteen".