447148738433 has 4 divisors (see below), whose sum is σ = 447150344640. Its totient is φ = 447147132228.

The previous prime is 447148738417. The next prime is 447148738447. The reversal of 447148738433 is 334837841744.

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 447148738433 - 2⁴ = 447148738417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (447148738403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265613 + ... + 982266.

It is an arithmetic number, because the mean of its divisors is an integer number (111787586160).

Almost surely, 2^447148738433 is an apocalyptic number.

It is an amenable number.

447148738433 is a deficient number, since it is larger than the sum of its proper divisors (1606207).

447148738433 is a wasteful number, since it uses less digits than its factorization.

447148738433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606206.

The product of its digits is 21676032, while the sum is 56.

The spelling of 447148738433 in words is "four hundred forty-seven billion, one hundred forty-eight million, seven hundred thirty-eight thousand, four hundred thirty-three".