1268018608 has 40 divisors (see below), whose sum is σ = 2484662400. Its totient is φ = 626856960.

The previous prime is 1268018597. The next prime is 1268018611. The reversal of 1268018608 is 8068108621.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 573441 + ... + 575647.

It is an arithmetic number, because the mean of its divisors is an integer number (62116560).

Almost surely, 2^1268018608 is an apocalyptic number.

It is an amenable number.

1268018608 is a deficient number, since it is larger than the sum of its proper divisors (1216643792).

1268018608 is a wasteful number, since it uses less digits than its factorization.

1268018608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 1268018608 is about 35609.2489109220. The cubic root of 1268018608 is about 1082.3686604142.

The spelling of 1268018608 in words is "one billion, two hundred sixty-eight million, eighteen thousand, six hundred eight".