1263168885 has 16 divisors (see below), whose sum is σ = 2204804160. Its totient is φ = 612445440.

The previous prime is 1263168883. The next prime is 1263168913. The reversal of 1263168885 is 5888613621.

It is not a de Polignac number, because 1263168885 - 2¹ = 1263168883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263168883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3827620 + ... + 3827949.

It is an arithmetic number, because the mean of its divisors is an integer number (137800260).

Almost surely, 2^1263168885 is an apocalyptic number.

1263168885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1263168885 is a deficient number, since it is larger than the sum of its proper divisors (941635275).

1263168885 is a wasteful number, since it uses less digits than its factorization.

1263168885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655588.

The product of its digits is 552960, while the sum is 48.

The square root of 1263168885 is about 35541.0872793729. The cubic root of 1263168885 is about 1080.9870049438.

The spelling of 1263168885 in words is "one billion, two hundred sixty-three million, one hundred sixty-eight thousand, eight hundred eighty-five".