814886868133 has 32 divisors (see below), whose sum is σ = 937521617760. Its totient is φ = 702730183680.

The previous prime is 814886868119. The next prime is 814886868139. The reversal of 814886868133 is 331868688418.

It can be written as a sum of positive squares in 16 ways, for example, as 113257825444 + 701629042689 = 336538^2 + 837633^2 .

It is a cyclic number.

It is not a de Polignac number, because 814886868133 - 2¹⁷ = 814886737061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814886868139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2363391 + ... + 2686147.

It is an arithmetic number, because the mean of its divisors is an integer number (29297550555).

Almost surely, 2^814886868133 is an apocalyptic number.

It is an amenable number.

814886868133 is a deficient number, since it is larger than the sum of its proper divisors (122634749627).

814886868133 is a wasteful number, since it uses less digits than its factorization.

814886868133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323017.

The product of its digits is 42467328, while the sum is 64.

The spelling of 814886868133 in words is "eight hundred fourteen billion, eight hundred eighty-six million, eight hundred sixty-eight thousand, one hundred thirty-three".