288487085891 has 2 divisors, whose sum is σ = 288487085892. Its totient is φ = 288487085890.

The previous prime is 288487085857. The next prime is 288487085927. The reversal of 288487085891 is 198580784882.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 288487085891 - 2¹⁰ = 288487084867 is a prime.

It is a super-2 number, since 2×288487085891² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (288487085851) 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 as a sum of consecutive naturals, namely, 144243542945 + 144243542946.

It is an arithmetic number, because the mean of its divisors is an integer number (144243542946).

Almost surely, 2^288487085891 is an apocalyptic number.

288487085891 is a deficient number, since it is larger than the sum of its proper divisors (1).

288487085891 is an equidigital number, since it uses as much as digits as its factorization.

288487085891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82575360, while the sum is 68.

The spelling of 288487085891 in words is "two hundred eighty-eight billion, four hundred eighty-seven million, eighty-five thousand, eight hundred ninety-one".