17139784508 has 48 divisors (see below), whose sum is σ = 38685427200. Its totient is φ = 6447564480.

The previous prime is 17139784481. The next prime is 17139784559. The reversal of 17139784508 is 80548793171.

It is a self number, because there is not a number n which added to its sum of digits gives 17139784508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950528 + ... + 968391.

It is an arithmetic number, because the mean of its divisors is an integer number (805946400).

Almost surely, 2^17139784508 is an apocalyptic number.

It is an amenable number.

17139784508 is an abundant number, since it is smaller than the sum of its proper divisors (21545642692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17139784508 is a wasteful number, since it uses less digits than its factorization.

17139784508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918970 (or 1918968 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

Adding to 17139784508 its sum of digits (53), we get a square (17139784561 = 130919²).

The spelling of 17139784508 in words is "seventeen billion, one hundred thirty-nine million, seven hundred eighty-four thousand, five hundred eight".