447677452216987 has 2 divisors, whose sum is σ = 447677452216988. Its totient is φ = 447677452216986.

The previous prime is 447677452216957. The next prime is 447677452217113. The reversal of 447677452216987 is 789612254776744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447677452216987 - 2⁷ = 447677452216859 is a prime.

It is not a weakly prime, because it can be changed into another prime (447677452216957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223838726108493 + 223838726108494.

It is an arithmetic number, because the mean of its divisors is an integer number (223838726108494).

Almost surely, 2^{447677452216987} is an apocalyptic number.

447677452216987 is a deficient number, since it is larger than the sum of its proper divisors (1).

447677452216987 is an equidigital number, since it uses as much as digits as its factorization.

447677452216987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7965941760, while the sum is 79.

The spelling of 447677452216987 in words is "four hundred forty-seven trillion, six hundred seventy-seven billion, four hundred fifty-two million, two hundred sixteen thousand, nine hundred eighty-seven".