31471380853 has 8 divisors (see below), whose sum is σ = 34334745120. Its totient is φ = 28608404880.

The previous prime is 31471380851. The next prime is 31471380881. The reversal of 31471380853 is 35808317413.

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

It is not a de Polignac number, because 31471380853 - 2¹ = 31471380851 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 (31471380851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87703 + ... + 265771.

It is an arithmetic number, because the mean of its divisors is an integer number (4291843140).

Almost surely, 2^31471380853 is an apocalyptic number.

It is an amenable number.

31471380853 is a deficient number, since it is larger than the sum of its proper divisors (2863364267).

31471380853 is a wasteful number, since it uses less digits than its factorization.

31471380853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194147.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 31471380853 in words is "thirty-one billion, four hundred seventy-one million, three hundred eighty thousand, eight hundred fifty-three".