19012943271 has 8 divisors (see below), whose sum is σ = 28972104064. Its totient is φ = 10864539000.

The previous prime is 19012943251. The next prime is 19012943273. The reversal of 19012943271 is 17234921091.

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

It is not a de Polignac number, because 19012943271 - 2¹⁴ = 19012926887 is a prime.

It is a super-2 number, since 2×19012943271² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19012943273) 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 7 ways as a sum of consecutive naturals, for example, 452689105 + ... + 452689146.

It is an arithmetic number, because the mean of its divisors is an integer number (3621513008).

Almost surely, 2^19012943271 is an apocalyptic number.

19012943271 is a deficient number, since it is larger than the sum of its proper divisors (9959160793).

19012943271 is an equidigital number, since it uses as much as digits as its factorization.

19012943271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905378261.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 19012943271 in words is "nineteen billion, twelve million, nine hundred forty-three thousand, two hundred seventy-one".