268788887863 has 8 divisors (see below), whose sum is σ = 269882159040. Its totient is φ = 267695984640.

The previous prime is 268788887839. The next prime is 268788887981. The reversal of 268788887863 is 368788887862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268788887863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268788887363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422498 + ... + 1600336.

It is an arithmetic number, because the mean of its divisors is an integer number (33735269880).

Almost surely, 2^268788887863 is an apocalyptic number.

268788887863 is a deficient number, since it is larger than the sum of its proper divisors (1093271177).

268788887863 is a wasteful number, since it uses less digits than its factorization.

268788887863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183977.

The product of its digits is 2774532096, while the sum is 79.

Subtracting 268788887863 from its reverse (368788887862), we obtain a palindrome (99999999999).

The spelling of 268788887863 in words is "two hundred sixty-eight billion, seven hundred eighty-eight million, eight hundred eighty-seven thousand, eight hundred sixty-three".