447631136745 has 32 divisors (see below), whose sum is σ = 771356796672. Its totient is φ = 220356847872.

The previous prime is 447631136717. The next prime is 447631136761. The reversal of 447631136745 is 547631136744.

It is a happy number.

It is not a de Polignac number, because 447631136745 - 2¹¹ = 447631134697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3023724 + ... + 3168306.

It is an arithmetic number, because the mean of its divisors is an integer number (24104899896).

Almost surely, 2^447631136745 is an apocalyptic number.

It is an amenable number.

447631136745 is a deficient number, since it is larger than the sum of its proper divisors (323725659927).

447631136745 is a wasteful number, since it uses less digits than its factorization.

447631136745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160481.

The product of its digits is 5080320, while the sum is 51.

Subtracting 447631136745 from its reverse (547631136744), we obtain a palindrome (99999999999).

The spelling of 447631136745 in words is "four hundred forty-seven billion, six hundred thirty-one million, one hundred thirty-six thousand, seven hundred forty-five".