31045441439 has 2 divisors, whose sum is σ = 31045441440. Its totient is φ = 31045441438.

The previous prime is 31045441417. The next prime is 31045441489. The reversal of 31045441439 is 93414454013.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31045441439 - 2¹⁶ = 31045375903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31045441489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15522720719 + 15522720720.

It is an arithmetic number, because the mean of its divisors is an integer number (15522720720).

Almost surely, 2^31045441439 is an apocalyptic number.

31045441439 is a deficient number, since it is larger than the sum of its proper divisors (1).

31045441439 is an equidigital number, since it uses as much as digits as its factorization.

31045441439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 31045441439 in words is "thirty-one billion, forty-five million, four hundred forty-one thousand, four hundred thirty-nine".