17139193851 has 64 divisors (see below), whose sum is σ = 25938784256. Its totient is φ = 9993715200.

The previous prime is 17139193831. The next prime is 17139193931. The reversal of 17139193851 is 15839193171.

It is not a de Polignac number, because 17139193851 - 2⁶ = 17139193787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17139193851.

It is not an unprimeable number, because it can be changed into a prime (17139193811) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22640565 + ... + 22641321.

It is an arithmetic number, because the mean of its divisors is an integer number (405293504).

Almost surely, 2^17139193851 is an apocalyptic number.

17139193851 is a deficient number, since it is larger than the sum of its proper divisors (8799590405).

17139193851 is a wasteful number, since it uses less digits than its factorization.

17139193851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its digits is 204120, while the sum is 48.

The spelling of 17139193851 in words is "seventeen billion, one hundred thirty-nine million, one hundred ninety-three thousand, eight hundred fifty-one".