447420178859 has 2 divisors, whose sum is σ = 447420178860. Its totient is φ = 447420178858.

The previous prime is 447420178837. The next prime is 447420178889. The reversal of 447420178859 is 958871024744.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447420178859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447420178798 and 447420178807.

It is not a weakly prime, because it can be changed into another prime (447420178889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223710089429 + 223710089430.

It is an arithmetic number, because the mean of its divisors is an integer number (223710089430).

Almost surely, 2^447420178859 is an apocalyptic number.

447420178859 is a deficient number, since it is larger than the sum of its proper divisors (1).

447420178859 is an equidigital number, since it uses as much as digits as its factorization.

447420178859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18063360, while the sum is 59.

The spelling of 447420178859 in words is "four hundred forty-seven billion, four hundred twenty million, one hundred seventy-eight thousand, eight hundred fifty-nine".