447053561856 has 720 divisors, whose sum is σ = 1522908387000. Its totient is φ = 130799370240.

The previous prime is 447053561839. The next prime is 447053561861. The reversal of 447053561856 is 658165350744.

It is a happy number.

447053561856 is a `hidden beast` number, since 4 + 4 + 70 + 5 + 3 + 561 + 8 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15415640050 + ... + 15415640078.

Almost surely, 2^447053561856 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 447053561856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761454193500).

447053561856 is an abundant number, since it is smaller than the sum of its proper divisors (1075854825144).

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

447053561856 is an frugal number, since it uses more digits than its factorization.

447053561856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 447053561856 in words is "four hundred forty-seven billion, fifty-three million, five hundred sixty-one thousand, eight hundred fifty-six".