17992739605 has 64 divisors (see below), whose sum is σ = 24005836800. Its totient is φ = 12893852160.

The previous prime is 17992739579. The next prime is 17992739641. The reversal of 17992739605 is 50693729971.

It is not a de Polignac number, because 17992739605 - 2¹⁹ = 17992215317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17992739605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27302766 + ... + 27303424.

It is an arithmetic number, because the mean of its divisors is an integer number (375091200).

Almost surely, 2^17992739605 is an apocalyptic number.

It is an amenable number.

17992739605 is a deficient number, since it is larger than the sum of its proper divisors (6013097195).

17992739605 is a wasteful number, since it uses less digits than its factorization.

17992739605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914.

The product of its (nonzero) digits is 6429780, while the sum is 58.

The spelling of 17992739605 in words is "seventeen billion, nine hundred ninety-two million, seven hundred thirty-nine thousand, six hundred five".