1268853802 has 32 divisors (see below), whose sum is σ = 1999028304. Its totient is φ = 603417600.

The previous prime is 1268853797. The next prime is 1268853827. The reversal of 1268853802 is 2083588621.

It can be written as a sum of positive squares in 8 ways, for example, as 24810361 + 1244043441 = 4981^2 + 35271^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816258 + ... + 817810.

Almost surely, 2^1268853802 is an apocalyptic number.

1268853802 is a deficient number, since it is larger than the sum of its proper divisors (730174502).

1268853802 is a wasteful number, since it uses less digits than its factorization.

1268853802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1268853802 is about 35620.9741865660. The cubic root of 1268853802 is about 1082.6062461521.

The spelling of 1268853802 in words is "one billion, two hundred sixty-eight million, eight hundred fifty-three thousand, eight hundred two".