289122704544 has 48 divisors (see below), whose sum is σ = 760928781312. Its totient is φ = 96122592768.

The previous prime is 289122704539. The next prime is 289122704551. The reversal of 289122704544 is 445407221982.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 289122704493 and 289122704502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894949 + ... + 3968484.

It is an arithmetic number, because the mean of its divisors is an integer number (15852682944).

Almost surely, 2^289122704544 is an apocalyptic number.

289122704544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

289122704544 is an abundant number, since it is smaller than the sum of its proper divisors (471806076768).

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

289122704544 is a wasteful number, since it uses less digits than its factorization.

289122704544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863829 (or 7863821 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 289122704544 in words is "two hundred eighty-nine billion, one hundred twenty-two million, seven hundred four thousand, five hundred forty-four".