268619217648 has 40 divisors (see below), whose sum is σ = 694161548496. Its totient is φ = 89510246400.

The previous prime is 268619217577. The next prime is 268619217661. The reversal of 268619217648 is 846712916862.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 268619217591 and 268619217600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774163 + ... + 1066098.

Almost surely, 2^268619217648 is an apocalyptic number.

It is an amenable number.

268619217648 is an abundant number, since it is smaller than the sum of its proper divisors (425542330848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268619217648 is a wasteful number, since it uses less digits than its factorization.

268619217648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843313 (or 1843307 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 60.

The spelling of 268619217648 in words is "two hundred sixty-eight billion, six hundred nineteen million, two hundred seventeen thousand, six hundred forty-eight".