1268118368 has 96 divisors (see below), whose sum is σ = 2891427840. Its totient is φ = 541416960.

The previous prime is 1268118367. The next prime is 1268118389. The reversal of 1268118368 is 8638118621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268118367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 848630 + ... + 850122.

It is an arithmetic number, because the mean of its divisors is an integer number (30119040).

Almost surely, 2^1268118368 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 1268118368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445713920).

1268118368 is an abundant number, since it is smaller than the sum of its proper divisors (1623309472).

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

1268118368 is a wasteful number, since it uses less digits than its factorization.

1268118368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660 (or 1652 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 1268118368 is about 35610.6496430492. The cubic root of 1268118368 is about 1082.3970443999.

The spelling of 1268118368 in words is "one billion, two hundred sixty-eight million, one hundred eighteen thousand, three hundred sixty-eight".