19306999297 has 8 divisors (see below), whose sum is σ = 20500622856. Its totient is φ = 18119811072.

The previous prime is 19306999279. The next prime is 19306999307. The reversal of 19306999297 is 79299960391.

It can be written as a sum of positive squares in 4 ways, for example, as 4795424001 + 14511575296 = 69249^2 + 120464^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19306999297 - 2¹⁹ = 19306475009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19306999247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602648 + ... + 1614649.

It is an arithmetic number, because the mean of its divisors is an integer number (2562577857).

Almost surely, 2^19306999297 is an apocalyptic number.

19306999297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

19306999297 is a deficient number, since it is larger than the sum of its proper divisors (1193623559).

19306999297 is a wasteful number, since it uses less digits than its factorization.

19306999297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217667.

The product of its (nonzero) digits is 14880348, while the sum is 64.

The spelling of 19306999297 in words is "nineteen billion, three hundred six million, nine hundred ninety-nine thousand, two hundred ninety-seven".