989382561842 has 8 divisors (see below), whose sum is σ = 1571372304156. Its totient is φ = 465591793792.

The previous prime is 989382561749. The next prime is 989382561851. The reversal of 989382561842 is 248165283989.

It can be written as a sum of positive squares in 2 ways, for example, as 936809116321 + 52573445521 = 967889^2 + 229289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14549743523 + ... + 14549743590.

Almost surely, 2^989382561842 is an apocalyptic number.

989382561842 is a deficient number, since it is larger than the sum of its proper divisors (581989742314).

989382561842 is a wasteful number, since it uses less digits than its factorization.

989382561842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29099487132.

The product of its digits is 59719680, while the sum is 65.

The spelling of 989382561842 in words is "nine hundred eighty-nine billion, three hundred eighty-two million, five hundred sixty-one thousand, eight hundred forty-two".