1268369886 has 32 divisors (see below), whose sum is σ = 2908604160. Its totient is φ = 361207296.

The previous prime is 1268369863. The next prime is 1268369911. The reversal of 1268369886 is 6889638621.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36291 + ... + 62078.

It is an arithmetic number, because the mean of its divisors is an integer number (90893880).

Almost surely, 2^1268369886 is an apocalyptic number.

1268369886 is an abundant number, since it is smaller than the sum of its proper divisors (1640234274).

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

1268369886 is a wasteful number, since it uses less digits than its factorization.

1268369886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98688.

The product of its digits is 5971968, while the sum is 57.

The square root of 1268369886 is about 35614.1809676988. The cubic root of 1268369886 is about 1082.4686003760.

The spelling of 1268369886 in words is "one billion, two hundred sixty-eight million, three hundred sixty-nine thousand, eight hundred eighty-six".