447553574147242 has 4 divisors (see below), whose sum is σ = 671330361220866. Its totient is φ = 223776787073620.

The previous prime is 447553574147231. The next prime is 447553574147243. The reversal of 447553574147242 is 242741475355744.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 266436052391161 + 181117521756081 = 16322869^2 + 13457991^2 .

It is not an unprimeable number, because it can be changed into a prime (447553574147243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111888393536809 + ... + 111888393536812.

Almost surely, 2^{447553574147242} is an apocalyptic number.

447553574147242 is a deficient number, since it is larger than the sum of its proper divisors (223776787073624).

447553574147242 is a wasteful number, since it uses less digits than its factorization.

447553574147242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223776787073623.

The product of its digits is 526848000, while the sum is 64.

The spelling of 447553574147242 in words is "four hundred forty-seven trillion, five hundred fifty-three billion, five hundred seventy-four million, one hundred forty-seven thousand, two hundred forty-two".