439448907743987 has 2 divisors, whose sum is σ = 439448907743988. Its totient is φ = 439448907743986.

The previous prime is 439448907743981. The next prime is 439448907744083. The reversal of 439448907743987 is 789347709844934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 439448907743987 - 2³⁴ = 439431727874803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 439448907743899 and 439448907743908.

It is not a weakly prime, because it can be changed into another prime (439448907743981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219724453871993 + 219724453871994.

It is an arithmetic number, because the mean of its divisors is an integer number (219724453871994).

Almost surely, 2^{439448907743987} is an apocalyptic number.

439448907743987 is a deficient number, since it is larger than the sum of its proper divisors (1).

439448907743987 is an equidigital number, since it uses as much as digits as its factorization.

439448907743987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36870930432, while the sum is 86.

The spelling of 439448907743987 in words is "four hundred thirty-nine trillion, four hundred forty-eight billion, nine hundred seven million, seven hundred forty-three thousand, nine hundred eighty-seven".