854324779138 has 8 divisors (see below), whose sum is σ = 1281574075788. Its totient is φ = 427133420544.

The previous prime is 854324779127. The next prime is 854324779151. The reversal of 854324779138 is 831977423458.

It can be written as a sum of positive squares in 2 ways, for example, as 852691568569 + 1633210569 = 923413^2 + 40413^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 14447631 + ... + 14506642.

Almost surely, 2^854324779138 is an apocalyptic number.

854324779138 is a deficient number, since it is larger than the sum of its proper divisors (427249296650).

854324779138 is a wasteful number, since it uses less digits than its factorization.

854324779138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28969028.

The product of its digits is 40642560, while the sum is 61.

The spelling of 854324779138 in words is "eight hundred fifty-four billion, three hundred twenty-four million, seven hundred seventy-nine thousand, one hundred thirty-eight".