31885442853 has 16 divisors (see below), whose sum is σ = 46503183936. Its totient is φ = 19272695040.

The previous prime is 31885442821. The next prime is 31885442881. The reversal of 31885442853 is 35824458813.

It is not a de Polignac number, because 31885442853 - 2⁵ = 31885442821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31885442796 and 31885442805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31885442803) 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 15 ways as a sum of consecutive naturals, for example, 1282900 + ... + 1307517.

It is an arithmetic number, because the mean of its divisors is an integer number (2906448996).

Almost surely, 2^31885442853 is an apocalyptic number.

31885442853 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31885442853 is a deficient number, since it is larger than the sum of its proper divisors (14617741083).

31885442853 is a wasteful number, since it uses less digits than its factorization.

31885442853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590804.

The product of its digits is 3686400, while the sum is 51.

The spelling of 31885442853 in words is "thirty-one billion, eight hundred eighty-five million, four hundred forty-two thousand, eight hundred fifty-three".