17138791930 has 48 divisors (see below), whose sum is σ = 33453073440. Its totient is φ = 6319145664.

The previous prime is 17138791871. The next prime is 17138791931. The reversal of 17138791930 is 3919783171.

It is not an unprimeable number, because it can be changed into a prime (17138791931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1242049 + ... + 1255771.

It is an arithmetic number, because the mean of its divisors is an integer number (696939030).

Almost surely, 2^17138791930 is an apocalyptic number.

17138791930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17138791930 is a deficient number, since it is larger than the sum of its proper divisors (16314281510).

17138791930 is a wasteful number, since it uses less digits than its factorization.

17138791930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14495 (or 14482 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 17138791930 in words is "seventeen billion, one hundred thirty-eight million, seven hundred ninety-one thousand, nine hundred thirty".