2031533404544 has 128 divisors (see below), whose sum is σ = 4905594593280. Its totient is φ = 819149506560.

The previous prime is 2031533404529. The next prime is 2031533404603. The reversal of 2031533404544 is 4454043351302.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 2031533404498 and 2031533404507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449057 + ... + 2065119.

It is an arithmetic number, because the mean of its divisors is an integer number (38324957760).

Almost surely, 2^{2031533404544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2031533404544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2452797296640).

2031533404544 is an abundant number, since it is smaller than the sum of its proper divisors (2874061188736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031533404544 is a wasteful number, since it uses less digits than its factorization.

2031533404544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616168 (or 1616156 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 2031533404544 its reverse (4454043351302), we get a palindrome (6485576755846).

The spelling of 2031533404544 in words is "two trillion, thirty-one billion, five hundred thirty-three million, four hundred four thousand, five hundred forty-four".