447021079560 has 896 divisors, whose sum is σ = 1774909584000. Its totient is φ = 100105113600.

The previous prime is 447021079529. The next prime is 447021079577. The reversal of 447021079560 is 65970120744.

447021079560 is a `hidden beast` number, since 4 + 4 + 7 + 0 + 2 + 10 + 79 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 249871146 + ... + 249872934.

It is an arithmetic number, because the mean of its divisors is an integer number (1980925875).

Almost surely, 2^447021079560 is an apocalyptic number.

447021079560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447021079560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887454792000).

447021079560 is an abundant number, since it is smaller than the sum of its proper divisors (1327888504440).

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

447021079560 is a wasteful number, since it uses less digits than its factorization.

447021079560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 447021079560 in words is "four hundred forty-seven billion, twenty-one million, seventy-nine thousand, five hundred sixty".