31744071853 has 16 divisors (see below), whose sum is σ = 34554366000. Its totient is φ = 28987269120.

The previous prime is 31744071833. The next prime is 31744071907. The reversal of 31744071853 is 35817044713.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 712783204 + 31031288649 = 26698^2 + 176157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31744071853 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 (31744071823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890823 + ... + 925771.

It is an arithmetic number, because the mean of its divisors is an integer number (2159647875).

Almost surely, 2^31744071853 is an apocalyptic number.

It is an amenable number.

31744071853 is a deficient number, since it is larger than the sum of its proper divisors (2810294147).

31744071853 is a wasteful number, since it uses less digits than its factorization.

31744071853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35712.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 31744071853 in words is "thirty-one billion, seven hundred forty-four million, seventy-one thousand, eight hundred fifty-three".