17406874049 has 2 divisors, whose sum is σ = 17406874050. Its totient is φ = 17406874048.

The previous prime is 17406874021. The next prime is 17406874057. The reversal of 17406874049 is 94047860471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17071251649 + 335622400 = 130657^2 + 18320^2 .

It is an emirp because it is prime and its reverse (94047860471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17406874049 - 2¹⁶ = 17406808513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17406873988 and 17406874006.

It is not a weakly prime, because it can be changed into another prime (17406874249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8703437024 + 8703437025.

It is an arithmetic number, because the mean of its divisors is an integer number (8703437025).

Almost surely, 2^17406874049 is an apocalyptic number.

It is an amenable number.

17406874049 is a deficient number, since it is larger than the sum of its proper divisors (1).

17406874049 is an equidigital number, since it uses as much as digits as its factorization.

17406874049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 17406874049 in words is "seventeen billion, four hundred six million, eight hundred seventy-four thousand, forty-nine".