289604741808 has 160 divisors (see below), whose sum is σ = 828536970240. Its totient is φ = 86811678720.

The previous prime is 289604741801. The next prime is 289604741809. The reversal of 289604741808 is 808147406982.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (289604741801) 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 in 31 ways as a sum of consecutive naturals, for example, 1278841 + ... + 1488167.

It is an arithmetic number, because the mean of its divisors is an integer number (5178356064).

Almost surely, 2^289604741808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289604741808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414268485120).

289604741808 is an abundant number, since it is smaller than the sum of its proper divisors (538932228432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289604741808 is a wasteful number, since it uses less digits than its factorization.

289604741808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209435 (or 209429 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 57.

The spelling of 289604741808 in words is "two hundred eighty-nine billion, six hundred four million, seven hundred forty-one thousand, eight hundred eight".