17928406611 has 12 divisors (see below), whose sum is σ = 25901381688. Its totient is φ = 11950058304.

The previous prime is 17928406591. The next prime is 17928406663. The reversal of 17928406611 is 11660482971.

17928406611 is a `hidden beast` number, since 1 + 7 + 9 + 28 + 4 + 0 + 6 + 611 = 666.

It is not a de Polignac number, because 17928406611 - 2¹⁵ = 17928373843 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (17928406681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132310 + ... + 231003.

It is an arithmetic number, because the mean of its divisors is an integer number (2158448474).

Almost surely, 2^17928406611 is an apocalyptic number.

17928406611 is a deficient number, since it is larger than the sum of its proper divisors (7972975077).

17928406611 is a wasteful number, since it uses less digits than its factorization.

17928406611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368802 (or 368799 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 17928406611 in words is "seventeen billion, nine hundred twenty-eight million, four hundred six thousand, six hundred eleven".