268902218312 has 128 divisors (see below), whose sum is σ = 624852264960. Its totient is φ = 105642731520.

The previous prime is 268902218281. The next prime is 268902218339. The reversal of 268902218312 is 213812209862.

It is a super-2 number, since 2×268902218312² (a number of 24 digits) contains 22 as substring.

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, 74838788 + ... + 74842380.

It is an arithmetic number, because the mean of its divisors is an integer number (4881658320).

Almost surely, 2^268902218312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268902218312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312426132480).

268902218312 is an abundant number, since it is smaller than the sum of its proper divisors (355950046648).

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

268902218312 is a wasteful number, since it uses less digits than its factorization.

268902218312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303 (or 4299 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 268902218312 in words is "two hundred sixty-eight billion, nine hundred two million, two hundred eighteen thousand, three hundred twelve".