288887323261 has 16 divisors (see below), whose sum is σ = 292143075840. Its totient is φ = 285654712000.

The previous prime is 288887323229. The next prime is 288887323301. The reversal of 288887323261 is 162323788882.

It is a cyclic number.

It is not a de Polignac number, because 288887323261 - 2⁵ = 288887323229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 288887323196 and 288887323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288887323211) 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 15 ways as a sum of consecutive naturals, for example, 23679015 + ... + 23691211.

It is an arithmetic number, because the mean of its divisors is an integer number (18258942240).

Almost surely, 2^288887323261 is an apocalyptic number.

It is an amenable number.

288887323261 is a deficient number, since it is larger than the sum of its proper divisors (3255752579).

288887323261 is a wasteful number, since it uses less digits than its factorization.

288887323261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13124.

The product of its digits is 12386304, while the sum is 58.

The spelling of 288887323261 in words is "two hundred eighty-eight billion, eight hundred eighty-seven million, three hundred twenty-three thousand, two hundred sixty-one".