5441437840639 has 2 divisors, whose sum is σ = 5441437840640. Its totient is φ = 5441437840638.

The previous prime is 5441437840609. The next prime is 5441437840687. The reversal of 5441437840639 is 9360487341445.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5441437840639 - 2⁵ = 5441437840607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5441437840609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2720718920319 + 2720718920320.

It is an arithmetic number, because the mean of its divisors is an integer number (2720718920320).

Almost surely, 2^{5441437840639} is an apocalyptic number.

5441437840639 is a deficient number, since it is larger than the sum of its proper divisors (1).

5441437840639 is an equidigital number, since it uses as much as digits as its factorization.

5441437840639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 58.

The spelling of 5441437840639 in words is "five trillion, four hundred forty-one billion, four hundred thirty-seven million, eight hundred forty thousand, six hundred thirty-nine".