39344441887 has 2 divisors, whose sum is σ = 39344441888. Its totient is φ = 39344441886.

The previous prime is 39344441879. The next prime is 39344442023. The reversal of 39344441887 is 78814444393.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 39344441887 - 2³ = 39344441879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39344441287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19672220943 + 19672220944.

It is an arithmetic number, because the mean of its divisors is an integer number (19672220944).

Almost surely, 2^39344441887 is an apocalyptic number.

39344441887 is a deficient number, since it is larger than the sum of its proper divisors (1).

39344441887 is an equidigital number, since it uses as much as digits as its factorization.

39344441887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 55.

The spelling of 39344441887 in words is "thirty-nine billion, three hundred forty-four million, four hundred forty-one thousand, eight hundred eighty-seven".