16138807019 has 2 divisors, whose sum is σ = 16138807020. Its totient is φ = 16138807018.

The previous prime is 16138806997. The next prime is 16138807051. The reversal of 16138807019 is 91070883161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16138807019 - 2⁸ = 16138806763 is a prime.

It is a super-2 number, since 2×16138807019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16138807099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8069403509 + 8069403510.

It is an arithmetic number, because the mean of its divisors is an integer number (8069403510).

Almost surely, 2^16138807019 is an apocalyptic number.

16138807019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16138807019 is an equidigital number, since it uses as much as digits as its factorization.

16138807019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 16138807019 in words is "sixteen billion, one hundred thirty-eight million, eight hundred seven thousand, nineteen".