268184217643 has 2 divisors, whose sum is σ = 268184217644. Its totient is φ = 268184217642.

The previous prime is 268184217593. The next prime is 268184217659. The reversal of 268184217643 is 346712481862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268184217643 - 2²⁵ = 268150663211 is a prime.

It is not a weakly prime, because it can be changed into another prime (268184217683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134092108821 + 134092108822.

It is an arithmetic number, because the mean of its divisors is an integer number (134092108822).

Almost surely, 2^268184217643 is an apocalyptic number.

268184217643 is a deficient number, since it is larger than the sum of its proper divisors (1).

268184217643 is an equidigital number, since it uses as much as digits as its factorization.

268184217643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 52.

The spelling of 268184217643 in words is "two hundred sixty-eight billion, one hundred eighty-four million, two hundred seventeen thousand, six hundred forty-three".