2019217392728 has 16 divisors (see below), whose sum is σ = 3833957076000. Its totient is φ = 996828839136.

The previous prime is 2019217392707. The next prime is 2019217392767. The reversal of 2019217392728 is 8272937129102.

It is a self number, because there is not a number n which added to its sum of digits gives 2019217392728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597481483 + ... + 1597482746.

It is an arithmetic number, because the mean of its divisors is an integer number (239622317250).

Almost surely, 2^{2019217392728} is an apocalyptic number.

It is an amenable number.

2019217392728 is a deficient number, since it is larger than the sum of its proper divisors (1814739683272).

2019217392728 is a wasteful number, since it uses less digits than its factorization.

2019217392728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194964314 (or 3194964310 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 2019217392728 in words is "two trillion, nineteen billion, two hundred seventeen million, three hundred ninety-two thousand, seven hundred twenty-eight".