289942432648 has 32 divisors (see below), whose sum is σ = 593097253920. Its totient is φ = 131784640000.

The previous prime is 289942432603. The next prime is 289942432657. The reversal of 289942432648 is 846234249982.

It is a super-2 number, since 2×289942432648² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1682328 + ... + 1846648.

It is an arithmetic number, because the mean of its divisors is an integer number (18534289185).

Almost surely, 2^289942432648 is an apocalyptic number.

It is an amenable number.

289942432648 is an abundant number, since it is smaller than the sum of its proper divisors (303154821272).

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

289942432648 is a wasteful number, since it uses less digits than its factorization.

289942432648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184389 (or 184385 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 61.

It can be divided in two parts, 28994 and 2432648, that added together give a palindrome (2461642).

The spelling of 289942432648 in words is "two hundred eighty-nine billion, nine hundred forty-two million, four hundred thirty-two thousand, six hundred forty-eight".