19056794339 has 4 divisors (see below), whose sum is σ = 20789230200. Its totient is φ = 17324358480.

The previous prime is 19056794303. The next prime is 19056794369. The reversal of 19056794339 is 93349765091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93349765091 = 11 ⋅8486342281.

It is a de Polignac number, because none of the positive numbers 2^k-19056794339 is a prime.

It is a super-2 number, since 2×19056794339² (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 (19056794369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866217914 + ... + 866217935.

It is an arithmetic number, because the mean of its divisors is an integer number (5197307550).

Almost surely, 2^19056794339 is an apocalyptic number.

19056794339 is a deficient number, since it is larger than the sum of its proper divisors (1732435861).

19056794339 is a wasteful number, since it uses less digits than its factorization.

19056794339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732435860.

The product of its (nonzero) digits is 5511240, while the sum is 56.

The spelling of 19056794339 in words is "nineteen billion, fifty-six million, seven hundred ninety-four thousand, three hundred thirty-nine".