16727439019 has 2 divisors, whose sum is σ = 16727439020. Its totient is φ = 16727439018.

The previous prime is 16727438993. The next prime is 16727439031. The reversal of 16727439019 is 91093472761.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16727439019 is a prime.

It is a super-2 number, since 2×16727439019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16727439419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8363719509 + 8363719510.

It is an arithmetic number, because the mean of its divisors is an integer number (8363719510).

Almost surely, 2^16727439019 is an apocalyptic number.

16727439019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16727439019 is an equidigital number, since it uses as much as digits as its factorization.

16727439019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 16727439019 in words is "sixteen billion, seven hundred twenty-seven million, four hundred thirty-nine thousand, nineteen".