268648886623 has 8 divisors (see below), whose sum is σ = 289321756416.
Its totient is φ = 247977098400.
The previous prime is 268648886593. The next prime is 268648886657. The reversal of 268648886623 is 326688846862.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 268648886623 - 25 = 268648886591 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 (268648886323) 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, 288258 + ... + 787648.
It is an arithmetic number, because the mean of its divisors is an integer number (36165219552).
Almost surely, 2268648886623 is an apocalyptic number.
268648886623 is a deficient number, since it is larger than the sum of its proper divisors (20672869793).
268648886623 is a wasteful number, since it uses less digits than its factorization.
268648886623 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 540785.
The product of its digits is 254803968, while the sum is 67.
The spelling of 268648886623 in words is "two hundred sixty-eight billion, six hundred forty-eight million, eight hundred eighty-six thousand, six hundred twenty-three".