19962817298 has 6 divisors (see below), whose sum is σ = 29944525671. Its totient is φ = 9981308742.

The previous prime is 19962817291. The next prime is 19962817313. The reversal of 19962817298 is 89271826991.

It can be written as a sum of positive squares in only one way, i.e., 9981408649 + 9981408649 = 99907^2 + 99907^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=99907.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19962817298.

It is not an unprimeable number, because it can be changed into a prime (19962817291) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 149861 + ... + 249767.

Almost surely, 2^19962817298 is an apocalyptic number.

19962817298 is a deficient number, since it is larger than the sum of its proper divisors (9981708373).

19962817298 is an frugal number, since it uses more digits than its factorization.

19962817298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199816 (or 99909 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 62.

The spelling of 19962817298 in words is "nineteen billion, nine hundred sixty-two million, eight hundred seventeen thousand, two hundred ninety-eight".