16438056049 has 2 divisors, whose sum is σ = 16438056050. Its totient is φ = 16438056048.

The previous prime is 16438055999. The next prime is 16438056059. The reversal of 16438056049 is 94065083461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10774440000 + 5663616049 = 103800^2 + 75257^2 .

It is a cyclic number.

It is not a de Polignac number, because 16438056049 - 2⁹ = 16438055537 is a prime.

It is not a weakly prime, because it can be changed into another prime (16438056059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8219028024 + 8219028025.

It is an arithmetic number, because the mean of its divisors is an integer number (8219028025).

Almost surely, 2^16438056049 is an apocalyptic number.

It is an amenable number.

16438056049 is a deficient number, since it is larger than the sum of its proper divisors (1).

16438056049 is an equidigital number, since it uses as much as digits as its factorization.

16438056049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 16438056049 in words is "sixteen billion, four hundred thirty-eight million, fifty-six thousand, forty-nine".