223617542287 has 2 divisors, whose sum is σ = 223617542288. Its totient is φ = 223617542286.

The previous prime is 223617542261. The next prime is 223617542371. The reversal of 223617542287 is 782245716322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223617542287 - 2¹⁹ = 223617017999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223617542287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223617542087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111808771143 + 111808771144.

It is an arithmetic number, because the mean of its divisors is an integer number (111808771144).

Almost surely, 2^223617542287 is an apocalyptic number.

223617542287 is a deficient number, since it is larger than the sum of its proper divisors (1).

223617542287 is an equidigital number, since it uses as much as digits as its factorization.

223617542287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 49.

The spelling of 223617542287 in words is "two hundred twenty-three billion, six hundred seventeen million, five hundred forty-two thousand, two hundred eighty-seven".