4421386863972 has 480 divisors, whose sum is σ = 13436851908480. Its totient is φ = 1256352768000.

The previous prime is 4421386863967. The next prime is 4421386863989. The reversal of 4421386863972 is 2793686831244.

4421386863972 is a `hidden beast` number, since 4 + 421 + 3 + 8 + 68 + 63 + 97 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 520097722 + ... + 520106222.

It is an arithmetic number, because the mean of its divisors is an integer number (27993441476).

Almost surely, 2^{4421386863972} 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 4421386863972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6718425954240).

4421386863972 is an abundant number, since it is smaller than the sum of its proper divisors (9015465044508).

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

4421386863972 is a wasteful number, since it uses less digits than its factorization.

4421386863972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8713 (or 8702 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 4421386863972 in words is "four trillion, four hundred twenty-one billion, three hundred eighty-six million, eight hundred sixty-three thousand, nine hundred seventy-two".