31613755731613 has 16 divisors (see below), whose sum is σ = 34606148161536. Its totient is φ = 28641103099840.

The previous prime is 31613755731553. The next prime is 31613755731637.

31613755731613 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31613755731613 - 2²⁵ = 31613722177181 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 (31613755732613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268987620 + ... + 269105122.

It is an arithmetic number, because the mean of its divisors is an integer number (2162884260096).

Almost surely, 2^{31613755731613} is an apocalyptic number.

It is an amenable number.

31613755731613 is a deficient number, since it is larger than the sum of its proper divisors (2992392429923).

31613755731613 is a wasteful number, since it uses less digits than its factorization.

31613755731613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201284.

The product of its digits is 3572100, while the sum is 52.

It can be divided in two parts, 3161375 and 5731613, that added together give a palindrome (8892988).

The spelling of 31613755731613 in words is "thirty-one trillion, six hundred thirteen billion, seven hundred fifty-five million, seven hundred thirty-one thousand, six hundred thirteen".