4921408016 has 80 divisors (see below), whose sum is σ = 11112384000. Its totient is φ = 2067945984.

The previous prime is 4921408001. The next prime is 4921408021. The reversal of 4921408016 is 6108041294.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1316486 + ... + 1320218.

It is an arithmetic number, because the mean of its divisors is an integer number (138904800).

Almost surely, 2^4921408016 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 4921408016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5556192000).

4921408016 is an abundant number, since it is smaller than the sum of its proper divisors (6190975984).

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

4921408016 is a wasteful number, since it uses less digits than its factorization.

4921408016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976 (or 3970 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 4921408016 is about 70152.7477437627. The cubic root of 4921408016 is about 1700.9692300017.

The spelling of 4921408016 in words is "four billion, nine hundred twenty-one million, four hundred eight thousand, sixteen".