288761331601 has 4 divisors (see below), whose sum is σ = 288913233204. Its totient is φ = 288609430000.

The previous prime is 288761331541. The next prime is 288761331623. The reversal of 288761331601 is 106133167882.

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 14838894225 + 273922437376 = 121815^2 + 523376^2 .

It is a cyclic number.

It is not a de Polignac number, because 288761331601 - 2¹¹ = 288761329553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288761331641) 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 3 ways as a sum of consecutive naturals, for example, 75947950 + ... + 75951751.

It is an arithmetic number, because the mean of its divisors is an integer number (72228308301).

Almost surely, 2^288761331601 is an apocalyptic number.

It is an amenable number.

288761331601 is a deficient number, since it is larger than the sum of its proper divisors (151901603).

288761331601 is a wasteful number, since it uses less digits than its factorization.

288761331601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151901602.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 288761331601 in words is "two hundred eighty-eight billion, seven hundred sixty-one million, three hundred thirty-one thousand, six hundred one".