179989011 has 6 divisors (see below), whose sum is σ = 259984140. Its totient is φ = 119992668.

The previous prime is 179989009. The next prime is 179989037. The reversal of 179989011 is 110989971.

179989011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 179989011 - 2¹ = 179989009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (179989091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9999381 + ... + 9999398.

It is an arithmetic number, because the mean of its divisors is an integer number (43330690).

Almost surely, 2^179989011 is an apocalyptic number.

179989011 is a deficient number, since it is larger than the sum of its proper divisors (79995129).

179989011 is a wasteful number, since it uses less digits than its factorization.

179989011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19998785 (or 19998782 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 45.

The square root of 179989011 is about 13415.9983228979. The cubic root of 179989011 is about 564.6101270449.

Adding to 179989011 its sum of digits (45), we get a square (179989056 = 13416²).

The spelling of 179989011 in words is "one hundred seventy-nine million, nine hundred eighty-nine thousand, eleven".