288643331842 has 16 divisors (see below), whose sum is σ = 442269849600. Its totient is φ = 141221338048.

The previous prime is 288643331813. The next prime is 288643331849. The reversal of 288643331842 is 248133346882.

It is a super-2 number, since 2×288643331842² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 288643331842.

It is not an unprimeable number, because it can be changed into a prime (288643331849) 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 7 ways as a sum of consecutive naturals, for example, 131178 + ... + 771034.

It is an arithmetic number, because the mean of its divisors is an integer number (27641865600).

Almost surely, 2^288643331842 is an apocalyptic number.

288643331842 is a deficient number, since it is larger than the sum of its proper divisors (153626517758).

288643331842 is a wasteful number, since it uses less digits than its factorization.

288643331842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644705.

The product of its digits is 5308416, while the sum is 52.

The spelling of 288643331842 in words is "two hundred eighty-eight billion, six hundred forty-three million, three hundred thirty-one thousand, eight hundred forty-two".