853479739138 has 32 divisors (see below), whose sum is σ = 1381486579200. Its totient is φ = 393117532416.

The previous prime is 853479739093. The next prime is 853479739141. The reversal of 853479739138 is 831937974358.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45584943 + ... + 45603661.

It is an arithmetic number, because the mean of its divisors is an integer number (43171455600).

Almost surely, 2^853479739138 is an apocalyptic number.

853479739138 is a deficient number, since it is larger than the sum of its proper divisors (528006840062).

853479739138 is a wasteful number, since it uses less digits than its factorization.

853479739138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22186.

The product of its digits is 137168640, while the sum is 67.

The spelling of 853479739138 in words is "eight hundred fifty-three billion, four hundred seventy-nine million, seven hundred thirty-nine thousand, one hundred thirty-eight".