288821785313 has 4 divisors (see below), whose sum is σ = 288845960388. Its totient is φ = 288797610240.

The previous prime is 288821785283. The next prime is 288821785391. The reversal of 288821785313 is 313587128882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148539326464 + 140282458849 = 385408^2 + 374543^2 .

It is a cyclic number.

It is not a de Polignac number, because 288821785313 - 2²⁴ = 288805008097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288821782313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12069608 + ... + 12093513.

It is an arithmetic number, because the mean of its divisors is an integer number (72211490097).

Almost surely, 2^288821785313 is an apocalyptic number.

It is an amenable number.

288821785313 is a deficient number, since it is larger than the sum of its proper divisors (24175075).

288821785313 is a wasteful number, since it uses less digits than its factorization.

288821785313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24175074.

The product of its digits is 5160960, while the sum is 56.

The spelling of 288821785313 in words is "two hundred eighty-eight billion, eight hundred twenty-one million, seven hundred eighty-five thousand, three hundred thirteen".