31644066044613 has 32 divisors (see below), whose sum is σ = 47204125057152. Its totient is φ = 18689125017600.

The previous prime is 31644066044593. The next prime is 31644066044627.

31644066044613 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31644066044613 - 2¹⁴ = 31644066028229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31644066044683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12147556 + ... + 14520717.

It is an arithmetic number, because the mean of its divisors is an integer number (1475128908036).

Almost surely, 2^{31644066044613} is an apocalyptic number.

31644066044613 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31644066044613 is a deficient number, since it is larger than the sum of its proper divisors (15560059012539).

31644066044613 is a wasteful number, since it uses less digits than its factorization.

31644066044613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26669205.

The product of its (nonzero) digits is 2985984, while the sum is 48.

The spelling of 31644066044613 in words is "thirty-one trillion, six hundred forty-four billion, sixty-six million, forty-four thousand, six hundred thirteen".