19492250017 has 8 divisors (see below), whose sum is σ = 19576248680. Its totient is φ = 19408429440.

The previous prime is 19492250003. The next prime is 19492250033. The reversal of 19492250017 is 71005229491.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1208883361 + 18283366656 = 34769^2 + 135216^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19492250017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19492250047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177223 + ... + 265315.

It is an arithmetic number, because the mean of its divisors is an integer number (2447031085).

Almost surely, 2^19492250017 is an apocalyptic number.

It is an amenable number.

19492250017 is a deficient number, since it is larger than the sum of its proper divisors (83998663).

19492250017 is an equidigital number, since it uses as much as digits as its factorization.

19492250017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89043.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 19492250017 in words is "nineteen billion, four hundred ninety-two million, two hundred fifty thousand, seventeen".