31144232044404 has 72 divisors (see below), whose sum is σ = 78838245186792. Its totient is φ = 10366571116800.

The previous prime is 31144232044333. The next prime is 31144232044439. The reversal of 31144232044404 is 40444023244113.

31144232044404 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 4 + 2 + 3 + 204 + 440 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5071954410000 + 26072277634404 = 2252100^2 + 5106102^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 556785222 + ... + 556841154.

Almost surely, 2^{31144232044404} is an apocalyptic number.

It is an amenable number.

31144232044404 is an abundant number, since it is smaller than the sum of its proper divisors (47694013142388).

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

31144232044404 is a wasteful number, since it uses less digits than its factorization.

31144232044404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77777 (or 77772 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 31144232044404 its reverse (40444023244113), we get a palindrome (71588255288517).

The spelling of 31144232044404 in words is "thirty-one trillion, one hundred forty-four billion, two hundred thirty-two million, forty-four thousand, four hundred four".