447974362836 has 768 divisors, whose sum is σ = 1738146816000. Its totient is φ = 95760506880.

The previous prime is 447974362813. The next prime is 447974362943. The reversal of 447974362836 is 638263479744.

447974362836 is a `hidden beast` number, since 4 + 479 + 74 + 3 + 62 + 8 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 34912470 + ... + 34925298.

It is an arithmetic number, because the mean of its divisors is an integer number (2263212000).

Almost surely, 2^447974362836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447974362836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (869073408000).

447974362836 is an abundant number, since it is smaller than the sum of its proper divisors (1290172453164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447974362836 is a wasteful number, since it uses less digits than its factorization.

447974362836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12909 (or 12901 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 63.

The spelling of 447974362836 in words is "four hundred forty-seven billion, nine hundred seventy-four million, three hundred sixty-two thousand, eight hundred thirty-six".