268561673652 has 24 divisors (see below), whose sum is σ = 626955569632. Its totient is φ = 89476034400.

The previous prime is 268561673641. The next prime is 268561673747. The reversal of 268561673652 is 256376165862.

It is a junction number, because it is equal to n+sod(n) for n = 268561673592 and 268561673601.

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, 5540299 + ... + 5588562.

Almost surely, 2^268561673652 is an apocalyptic number.

It is an amenable number.

268561673652 is an abundant number, since it is smaller than the sum of its proper divisors (358393895980).

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

268561673652 is a wasteful number, since it uses less digits than its factorization.

268561673652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11130879 (or 11130877 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 57.

The spelling of 268561673652 in words is "two hundred sixty-eight billion, five hundred sixty-one million, six hundred seventy-three thousand, six hundred fifty-two".