288857223091 has 2 divisors, whose sum is σ = 288857223092. Its totient is φ = 288857223090.

The previous prime is 288857223029. The next prime is 288857223097. The reversal of 288857223091 is 190322758882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 288857223091 - 2⁹ = 288857222579 is a prime.

It is not a weakly prime, because it can be changed into another prime (288857223097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144428611545 + 144428611546.

It is an arithmetic number, because the mean of its divisors is an integer number (144428611546).

Almost surely, 2^288857223091 is an apocalyptic number.

288857223091 is a deficient number, since it is larger than the sum of its proper divisors (1).

288857223091 is an equidigital number, since it uses as much as digits as its factorization.

288857223091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 288857223091 in words is "two hundred eighty-eight billion, eight hundred fifty-seven million, two hundred twenty-three thousand, ninety-one".