19018869241 has 8 divisors (see below), whose sum is σ = 20162987264. Its totient is φ = 17907914160.

The previous prime is 19018869239. The next prime is 19018869269. The reversal of 19018869241 is 14296881091.

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

It is not a de Polignac number, because 19018869241 - 2¹ = 19018869239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19018869041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8289555 + ... + 8291848.

It is an arithmetic number, because the mean of its divisors is an integer number (2520373408).

Almost surely, 2^19018869241 is an apocalyptic number.

It is an amenable number.

19018869241 is a deficient number, since it is larger than the sum of its proper divisors (1144118023).

19018869241 is a wasteful number, since it uses less digits than its factorization.

19018869241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16581471.

The product of its (nonzero) digits is 248832, while the sum is 49.

The spelling of 19018869241 in words is "nineteen billion, eighteen million, eight hundred sixty-nine thousand, two hundred forty-one".