447180815947 has 2 divisors, whose sum is σ = 447180815948. Its totient is φ = 447180815946.

The previous prime is 447180815911. The next prime is 447180815953. The reversal of 447180815947 is 749518081744.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447180815947 - 2¹¹ = 447180813899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447180815891 and 447180815900.

It is not a weakly prime, because it can be changed into another prime (447180815047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223590407973 + 223590407974.

It is an arithmetic number, because the mean of its divisors is an integer number (223590407974).

Almost surely, 2^447180815947 is an apocalyptic number.

447180815947 is a deficient number, since it is larger than the sum of its proper divisors (1).

447180815947 is an equidigital number, since it uses as much as digits as its factorization.

447180815947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 447180815947 in words is "four hundred forty-seven billion, one hundred eighty million, eight hundred fifteen thousand, nine hundred forty-seven".