268236426543 has 16 divisors (see below), whose sum is σ = 369352728576. Its totient is φ = 172977426720.

The previous prime is 268236426539. The next prime is 268236426599. The reversal of 268236426543 is 345624632862.

It is not a de Polignac number, because 268236426543 - 2² = 268236426539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268236426343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445855 + ... + 857472.

It is an arithmetic number, because the mean of its divisors is an integer number (23084545536).

Almost surely, 2^268236426543 is an apocalyptic number.

268236426543 is a deficient number, since it is larger than the sum of its proper divisors (101116302033).

268236426543 is a wasteful number, since it uses less digits than its factorization.

268236426543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305574.

The product of its digits is 9953280, while the sum is 51.

The spelling of 268236426543 in words is "two hundred sixty-eight billion, two hundred thirty-six million, four hundred twenty-six thousand, five hundred forty-three".