447420178753 has 2 divisors, whose sum is σ = 447420178754. Its totient is φ = 447420178752.

The previous prime is 447420178741. The next prime is 447420178813. The reversal of 447420178753 is 357871024744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413304980544 + 34115198209 = 642888^2 + 184703^2 .

It is a cyclic number.

It is not a de Polignac number, because 447420178753 - 2⁹ = 447420178241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 447420178753.

It is not a weakly prime, because it can be changed into another prime (447420178253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223710089376 + 223710089377.

It is an arithmetic number, because the mean of its divisors is an integer number (223710089377).

Almost surely, 2^447420178753 is an apocalyptic number.

It is an amenable number.

447420178753 is a deficient number, since it is larger than the sum of its proper divisors (1).

447420178753 is an equidigital number, since it uses as much as digits as its factorization.

447420178753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5268480, while the sum is 52.

The spelling of 447420178753 in words is "four hundred forty-seven billion, four hundred twenty million, one hundred seventy-eight thousand, seven hundred fifty-three".