383149335681 has 48 divisors (see below), whose sum is σ = 652306530304. Its totient is φ = 212166736992.

The previous prime is 383149335661. The next prime is 383149335703. The reversal of 383149335681 is 186533941383.

383149335681 is a `hidden beast` number, since 3 + 8 + 3 + 1 + 49 + 33 + 568 + 1 = 666.

It is not a de Polignac number, because 383149335681 - 2⁵ = 383149335649 is a prime.

It is a super-2 number, since 2×383149335681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383149335601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212791 + ... + 900876.

Almost surely, 2^383149335681 is an apocalyptic number.

It is an amenable number.

383149335681 is a deficient number, since it is larger than the sum of its proper divisors (269157194623).

383149335681 is a wasteful number, since it uses less digits than its factorization.

383149335681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113850 (or 1113847 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 383149335681 in words is "three hundred eighty-three billion, one hundred forty-nine million, three hundred thirty-five thousand, six hundred eighty-one".