447636840747 has 8 divisors (see below), whose sum is σ = 609548038656. Its totient is φ = 292075101672.

The previous prime is 447636840713. The next prime is 447636840779. The reversal of 447636840747 is 747048636744.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 447636840747 - 2¹² = 447636836651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447636840347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1587364543 + ... + 1587364824.

It is an arithmetic number, because the mean of its divisors is an integer number (76193504832).

Almost surely, 2^447636840747 is an apocalyptic number.

447636840747 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

447636840747 is a deficient number, since it is larger than the sum of its proper divisors (161911197909).

447636840747 is a wasteful number, since it uses less digits than its factorization.

447636840747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174729417.

The product of its (nonzero) digits is 75866112, while the sum is 60.

The spelling of 447636840747 in words is "four hundred forty-seven billion, six hundred thirty-six million, eight hundred forty thousand, seven hundred forty-seven".