19428849411 has 8 divisors (see below), whose sum is σ = 25966960320. Its totient is φ = 12921652392.

The previous prime is 19428849383. The next prime is 19428849413. The reversal of 19428849411 is 11494882491.

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

It is not a de Polignac number, because 19428849411 - 2⁷ = 19428849283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19428849413) 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, 7727005 + ... + 7729518.

It is an arithmetic number, because the mean of its divisors is an integer number (3245870040).

Almost surely, 2^19428849411 is an apocalyptic number.

19428849411 is a deficient number, since it is larger than the sum of its proper divisors (6538110909).

19428849411 is a wasteful number, since it uses less digits than its factorization.

19428849411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15456945.

The product of its digits is 663552, while the sum is 51.

The spelling of 19428849411 in words is "nineteen billion, four hundred twenty-eight million, eight hundred forty-nine thousand, four hundred eleven".