854949142933 has 4 divisors (see below), whose sum is σ = 854985807468. Its totient is φ = 854912478400.

The previous prime is 854949142907. The next prime is 854949142963. The reversal of 854949142933 is 339241949458.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 339241949458 = 2 ⋅169620974729.

It can be written as a sum of positive squares in 2 ways, for example, as 11486909329 + 843462233604 = 107177^2 + 918402^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854949142933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854949142963) 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 3 ways as a sum of consecutive naturals, for example, 18297268 + ... + 18343933.

It is an arithmetic number, because the mean of its divisors is an integer number (213746451867).

Almost surely, 2^854949142933 is an apocalyptic number.

It is an amenable number.

854949142933 is a deficient number, since it is larger than the sum of its proper divisors (36664535).

854949142933 is a wasteful number, since it uses less digits than its factorization.

854949142933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36664534.

The product of its digits is 33592320, while the sum is 61.

The spelling of 854949142933 in words is "eight hundred fifty-four billion, nine hundred forty-nine million, one hundred forty-two thousand, nine hundred thirty-three".