31643455434613 has 16 divisors (see below), whose sum is σ = 35681645371392. Its totient is φ = 27801348750000.

The previous prime is 31643455434593. The next prime is 31643455434631.

31643455434613 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31643455434613 - 2¹³ = 31643455426421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31643455434673) 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, 62193513 + ... + 62700238.

It is an arithmetic number, because the mean of its divisors is an integer number (2230102835712).

Almost surely, 2^{31643455434613} is an apocalyptic number.

It is an amenable number.

31643455434613 is a deficient number, since it is larger than the sum of its proper divisors (4038189936779).

31643455434613 is a wasteful number, since it uses less digits than its factorization.

31643455434613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124894536.

The product of its digits is 18662400, while the sum is 52.

It can be divided in two parts, 3164345 and 5434613, that added together give a palindrome (8598958).

The spelling of 31643455434613 in words is "thirty-one trillion, six hundred forty-three billion, four hundred fifty-five million, four hundred thirty-four thousand, six hundred thirteen".