31044443489 has 2 divisors, whose sum is σ = 31044443490. Its totient is φ = 31044443488.

The previous prime is 31044443411. The next prime is 31044443519. The reversal of 31044443489 is 98434444013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20439563089 + 10604880400 = 142967^2 + 102980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31044443489 is a prime.

It is not a weakly prime, because it can be changed into another prime (31044413489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15522221744 + 15522221745.

It is an arithmetic number, because the mean of its divisors is an integer number (15522221745).

Almost surely, 2^31044443489 is an apocalyptic number.

It is an amenable number.

31044443489 is a deficient number, since it is larger than the sum of its proper divisors (1).

31044443489 is an equidigital number, since it uses as much as digits as its factorization.

31044443489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 31044443489 in words is "thirty-one billion, forty-four million, four hundred forty-three thousand, four hundred eighty-nine".