989159011 has 2 divisors, whose sum is σ = 989159012. Its totient is φ = 989159010.

The previous prime is 989159009. The next prime is 989159021. The reversal of 989159011 is 110951989.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989159011 - 2¹ = 989159009 is a prime.

Together with 989159009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (989159021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494579505 + 494579506.

It is an arithmetic number, because the mean of its divisors is an integer number (494579506).

Almost surely, 2^989159011 is an apocalyptic number.

989159011 is a deficient number, since it is larger than the sum of its proper divisors (1).

989159011 is an equidigital number, since it uses as much as digits as its factorization.

989159011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 43.

The square root of 989159011 is about 31450.8984132409. The cubic root of 989159011 is about 996.3731992180.

It can be divided in two parts, 989 and 159011, that added together give a 4-th power (160000 = 20⁴).

The spelling of 989159011 in words is "nine hundred eighty-nine million, one hundred fifty-nine thousand, eleven".