386833686885 has 24 divisors (see below), whose sum is σ = 672932365560. Its totient is φ = 205566486912.

The previous prime is 386833686871. The next prime is 386833686887. The reversal of 386833686885 is 588686338683.

386833686885 is a `hidden beast` number, since 386 + 83 + 36 + 8 + 68 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2108738241 + 384724948644 = 45921^2 + 620262^2 .

It is not a de Polignac number, because 386833686885 - 2¹⁴ = 386833670501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386833686887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15504330 + ... + 15529259.

It is an arithmetic number, because the mean of its divisors is an integer number (28038848565).

Almost surely, 2^386833686885 is an apocalyptic number.

It is an amenable number.

386833686885 is a deficient number, since it is larger than the sum of its proper divisors (286098678675).

386833686885 is a wasteful number, since it uses less digits than its factorization.

386833686885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31033877 (or 31033874 counting only the distinct ones).

The product of its digits is 955514880, while the sum is 72.

The spelling of 386833686885 in words is "three hundred eighty-six billion, eight hundred thirty-three million, six hundred eighty-six thousand, eight hundred eighty-five".