447381337047 has 4 divisors (see below), whose sum is σ = 596508449400. Its totient is φ = 298254224696.

The previous prime is 447381337031. The next prime is 447381337057. The reversal of 447381337047 is 740733183744.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 447381337047 - 2⁴ = 447381337031 is a prime.

It is a super-2 number, since 2×447381337047² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447381337057) 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, 74563556172 + ... + 74563556177.

It is an arithmetic number, because the mean of its divisors is an integer number (149127112350).

Almost surely, 2^447381337047 is an apocalyptic number.

447381337047 is a deficient number, since it is larger than the sum of its proper divisors (149127112353).

447381337047 is a wasteful number, since it uses less digits than its factorization.

447381337047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149127112352.

The product of its (nonzero) digits is 4741632, while the sum is 51.

The spelling of 447381337047 in words is "four hundred forty-seven billion, three hundred eighty-one million, three hundred thirty-seven thousand, forty-seven".