268289353494 has 64 divisors (see below), whose sum is σ = 618524160000. Its totient is φ = 86109946560.

The previous prime is 268289353489. The next prime is 268289353531. The reversal of 268289353494 is 494353982862.

It is a happy number.

268289353494 is a `hidden beast` number, since 2 + 6 + 8 + 2 + 8 + 9 + 3 + 534 + 94 = 666.

It is a super-3 number, since 3×268289353494³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69559 + ... + 735810.

It is an arithmetic number, because the mean of its divisors is an integer number (9664440000).

Almost surely, 2^268289353494 is an apocalyptic number.

268289353494 is an abundant number, since it is smaller than the sum of its proper divisors (350234806506).

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

268289353494 is a wasteful number, since it uses less digits than its factorization.

268289353494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805610 (or 805604 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 63.

The spelling of 268289353494 in words is "two hundred sixty-eight billion, two hundred eighty-nine million, three hundred fifty-three thousand, four hundred ninety-four".