4489821197056 has 72 divisors (see below), whose sum is σ = 9653281205904. Its totient is φ = 2071842017280.

The previous prime is 4489821197053. The next prime is 4489821197087. The reversal of 4489821197056 is 6507911289844.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (4489821197053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18285210 + ... + 18529126.

It is an arithmetic number, because the mean of its divisors is an integer number (134073350082).

Almost surely, 2^{4489821197056} 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 4489821197056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4826640602952).

4489821197056 is an abundant number, since it is smaller than the sum of its proper divisors (5163460008848).

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

4489821197056 is a wasteful number, since it uses less digits than its factorization.

4489821197056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249477 (or 249463 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 4489821197056 in words is "four trillion, four hundred eighty-nine billion, eight hundred twenty-one million, one hundred ninety-seven thousand, fifty-six".