19078911703 has 12 divisors (see below), whose sum is σ = 20219052568. Its totient is φ = 17992588320.

The previous prime is 19078911697. The next prime is 19078911707. The reversal of 19078911703 is 30711987091.

It is not a de Polignac number, because 19078911703 - 2²¹ = 19076814551 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19078911707) 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 11 ways as a sum of consecutive naturals, for example, 227628 + ... + 299953.

Almost surely, 2^19078911703 is an apocalyptic number.

19078911703 is a deficient number, since it is larger than the sum of its proper divisors (1140140865).

19078911703 is an equidigital number, since it uses as much as digits as its factorization.

19078911703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527682 (or 527653 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 46.

The spelling of 19078911703 in words is "nineteen billion, seventy-eight million, nine hundred eleven thousand, seven hundred three".