19071034747 has 4 divisors (see below), whose sum is σ = 19239805080. Its totient is φ = 18902264416.

The previous prime is 19071034699. The next prime is 19071034753. The reversal of 19071034747 is 74743017091.

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

It is a cyclic number.

It is not a de Polignac number, because 19071034747 - 2¹⁵ = 19071001979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19071034757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84384997 + ... + 84385222.

It is an arithmetic number, because the mean of its divisors is an integer number (4809951270).

Almost surely, 2^19071034747 is an apocalyptic number.

19071034747 is a deficient number, since it is larger than the sum of its proper divisors (168770333).

19071034747 is a wasteful number, since it uses less digits than its factorization.

19071034747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168770332.

The product of its (nonzero) digits is 148176, while the sum is 43.

The spelling of 19071034747 in words is "nineteen billion, seventy-one million, thirty-four thousand, seven hundred forty-seven".