17021371899 has 16 divisors (see below), whose sum is σ = 26060261120. Its totient is φ = 9680398560.

The previous prime is 17021371897. The next prime is 17021371919. The reversal of 17021371899 is 99817312071.

It is not a de Polignac number, because 17021371899 - 2¹ = 17021371897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17021371897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1916284 + ... + 1925145.

It is an arithmetic number, because the mean of its divisors is an integer number (1628766320).

Almost surely, 2^17021371899 is an apocalyptic number.

17021371899 is a deficient number, since it is larger than the sum of its proper divisors (9038889221).

17021371899 is a wasteful number, since it uses less digits than its factorization.

17021371899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841650.

The product of its (nonzero) digits is 190512, while the sum is 48.

The spelling of 17021371899 in words is "seventeen billion, twenty-one million, three hundred seventy-one thousand, eight hundred ninety-nine".