5043644661531 has 32 divisors (see below), whose sum is σ = 7714923245568. Its totient is φ = 2871089735040.

The previous prime is 5043644661529. The next prime is 5043644661541. The reversal of 5043644661531 is 1351664463405.

It is a happy number.

It is not a de Polignac number, because 5043644661531 - 2¹ = 5043644661529 is a prime.

It is a super-2 number, since 2×5043644661531² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5043644661541) 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 31 ways as a sum of consecutive naturals, for example, 5447221 + ... + 6305513.

It is an arithmetic number, because the mean of its divisors is an integer number (241091351424).

Almost surely, 2^{5043644661531} is an apocalyptic number.

5043644661531 is a deficient number, since it is larger than the sum of its proper divisors (2671278584037).

5043644661531 is a wasteful number, since it uses less digits than its factorization.

5043644661531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859371.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 5043644661531 in words is "five trillion, forty-three billion, six hundred forty-four million, six hundred sixty-one thousand, five hundred thirty-one".