1268924811 has 16 divisors (see below), whose sum is σ = 2109381888. Its totient is φ = 659181600.

The previous prime is 1268924809. The next prime is 1268924831. The reversal of 1268924811 is 1184298621.

It is not a de Polignac number, because 1268924811 - 2¹ = 1268924809 is a prime.

It is a super-2 number, since 2×1268924811² = 3220340351942771442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1268924831) by changing a digit.

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, 2746360 + ... + 2746821.

It is an arithmetic number, because the mean of its divisors is an integer number (131836368).

Almost surely, 2^1268924811 is an apocalyptic number.

1268924811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1268924811 is a deficient number, since it is larger than the sum of its proper divisors (840457077).

1268924811 is a wasteful number, since it uses less digits than its factorization.

1268924811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493202.

The product of its digits is 55296, while the sum is 42.

The square root of 1268924811 is about 35621.9709028010. The cubic root of 1268924811 is about 1082.6264411115.

The spelling of 1268924811 in words is "one billion, two hundred sixty-eight million, nine hundred twenty-four thousand, eight hundred eleven".