447975353564772 has 96 divisors (see below), whose sum is σ = 1147777380384768. Its totient is φ = 134861917920000.

The previous prime is 447975353564749. The next prime is 447975353564777. The reversal of 447975353564772 is 277465353579744.

It is not an unprimeable number, because it can be changed into a prime (447975353564777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7511997 + ... + 30860667.

It is an arithmetic number, because the mean of its divisors is an integer number (11956014379008).

Almost surely, 2^{447975353564772} 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 447975353564772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573888690192384).

447975353564772 is an abundant number, since it is smaller than the sum of its proper divisors (699802026819996).

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

447975353564772 is a wasteful number, since it uses less digits than its factorization.

447975353564772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23349641 (or 23349639 counting only the distinct ones).

The product of its digits is 18670176000, while the sum is 78.

The spelling of 447975353564772 in words is "four hundred forty-seven trillion, nine hundred seventy-five billion, three hundred fifty-three million, five hundred sixty-four thousand, seven hundred seventy-two".