531903889013 has 16 divisors (see below), whose sum is σ = 640204800000. Its totient is φ = 431705670192.

The previous prime is 531903889007. The next prime is 531903889021. The reversal of 531903889013 is 310988309135.

It is a cyclic number.

It is not a de Polignac number, because 531903889013 - 2²⁶ = 531836780149 is a prime.

It is a super-2 number, since 2×531903889013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531903889063) 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, 734453 + ... + 1266186.

It is an arithmetic number, because the mean of its divisors is an integer number (40012800000).

Almost surely, 2^531903889013 is an apocalyptic number.

It is an amenable number.

531903889013 is a deficient number, since it is larger than the sum of its proper divisors (108300910987).

531903889013 is a wasteful number, since it uses less digits than its factorization.

531903889013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002664.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 531903889013 in words is "five hundred thirty-one billion, nine hundred three million, eight hundred eighty-nine thousand, thirteen".