23198005049 has 2 divisors, whose sum is σ = 23198005050. Its totient is φ = 23198005048.

The previous prime is 23198005021. The next prime is 23198005063. The reversal of 23198005049 is 94050089132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23136539449 + 61465600 = 152107^2 + 7840^2 .

It is a cyclic number.

It is not a de Polignac number, because 23198005049 - 2⁸ = 23198004793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23198004997 and 23198005015.

It is not a weakly prime, because it can be changed into another prime (23198005549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11599002524 + 11599002525.

It is an arithmetic number, because the mean of its divisors is an integer number (11599002525).

Almost surely, 2^23198005049 is an apocalyptic number.

It is an amenable number.

23198005049 is a deficient number, since it is larger than the sum of its proper divisors (1).

23198005049 is an equidigital number, since it uses as much as digits as its factorization.

23198005049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 23198005049 in words is "twenty-three billion, one hundred ninety-eight million, five thousand, forty-nine".