19498675241 has 2 divisors, whose sum is σ = 19498675242. Its totient is φ = 19498675240.

The previous prime is 19498675223. The next prime is 19498675253. The reversal of 19498675241 is 14257689491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19478389225 + 20286016 = 139565^2 + 4504^2 .

It is an emirp because it is prime and its reverse (14257689491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19498675241 is a prime.

It is not a weakly prime, because it can be changed into another prime (19498675211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9749337620 + 9749337621.

It is an arithmetic number, because the mean of its divisors is an integer number (9749337621).

Almost surely, 2^19498675241 is an apocalyptic number.

It is an amenable number.

19498675241 is a deficient number, since it is larger than the sum of its proper divisors (1).

19498675241 is an equidigital number, since it uses as much as digits as its factorization.

19498675241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 56.

The spelling of 19498675241 in words is "nineteen billion, four hundred ninety-eight million, six hundred seventy-five thousand, two hundred forty-one".