447477255321 has 4 divisors (see below), whose sum is σ = 596636340432. Its totient is φ = 298318170212.

The previous prime is 447477255299. The next prime is 447477255361. The reversal of 447477255321 is 123552774744.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 447477255321 - 2⁵ = 447477255289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447477255361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74579542551 + ... + 74579542556.

It is an arithmetic number, because the mean of its divisors is an integer number (149159085108).

Almost surely, 2^447477255321 is an apocalyptic number.

It is an amenable number.

447477255321 is a deficient number, since it is larger than the sum of its proper divisors (149159085111).

447477255321 is a wasteful number, since it uses less digits than its factorization.

447477255321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149159085110.

The product of its digits is 6585600, while the sum is 51.

The spelling of 447477255321 in words is "four hundred forty-seven billion, four hundred seventy-seven million, two hundred fifty-five thousand, three hundred twenty-one".