31544344444 has 12 divisors (see below), whose sum is σ = 55212346000. Its totient is φ = 15769388448.

The previous prime is 31544344417. The next prime is 31544344457. The reversal of 31544344444 is 44444344513.

It is a junction number, because it is equal to n+sod(n) for n = 31544344397 and 31544344406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670344 + ... + 715855.

Almost surely, 2^31544344444 is an apocalyptic number.

It is an amenable number.

31544344444 is a deficient number, since it is larger than the sum of its proper divisors (23668001556).

31544344444 is a wasteful number, since it uses less digits than its factorization.

31544344444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391892 (or 1391890 counting only the distinct ones).

The product of its digits is 737280, while the sum is 40.

Adding to 31544344444 its reverse (44444344513), we get a palindrome (75988688957).

The spelling of 31544344444 in words is "thirty-one billion, five hundred forty-four million, three hundred forty-four thousand, four hundred forty-four".