289661072442 has 48 divisors (see below), whose sum is σ = 679211781120. Its totient is φ = 82108639872.

The previous prime is 289661072377. The next prime is 289661072461. The reversal of 289661072442 is 244270166982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3841567 + ... + 3916242.

It is an arithmetic number, because the mean of its divisors is an integer number (14150245440).

Almost surely, 2^289661072442 is an apocalyptic number.

289661072442 is an abundant number, since it is smaller than the sum of its proper divisors (389550708678).

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

289661072442 is a wasteful number, since it uses less digits than its factorization.

289661072442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757955 (or 7757948 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 289661072442 in words is "two hundred eighty-nine billion, six hundred sixty-one million, seventy-two thousand, four hundred forty-two".