19000968337 has 4 divisors (see below), whose sum is σ = 20462581300. Its totient is φ = 17539355376.

The previous prime is 19000968223. The next prime is 19000968377. The reversal of 19000968337 is 73386900091.

It is a Cunningham number, because it is equal to 137844²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2810696256 + 16190272081 = 53016^2 + 127241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19000968337 is a prime.

It is a super-2 number, since 2×19000968337² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19000968377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730806462 + ... + 730806487.

It is an arithmetic number, because the mean of its divisors is an integer number (5115645325).

Almost surely, 2^19000968337 is an apocalyptic number.

It is an amenable number.

19000968337 is a deficient number, since it is larger than the sum of its proper divisors (1461612963).

19000968337 is a wasteful number, since it uses less digits than its factorization.

19000968337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461612962.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 19000968337 in words is "nineteen billion, nine hundred sixty-eight thousand, three hundred thirty-seven".