4921772544 has 480 divisors, whose sum is σ = 16890793920. Its totient is φ = 1417347072.

The previous prime is 4921772543. The next prime is 4921772579. The reversal of 4921772544 is 4452771294.

4921772544 is a `hidden beast` number, since 4 + 92 + 17 + 7 + 2 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 4921772544.

It is not an unprimeable number, because it can be changed into a prime (4921772543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27495847 + ... + 27496025.

It is an arithmetic number, because the mean of its divisors is an integer number (35189154).

Almost surely, 2^4921772544 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 4921772544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8445396960).

4921772544 is an abundant number, since it is smaller than the sum of its proper divisors (11969021376).

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

4921772544 is a wasteful number, since it uses less digits than its factorization.

4921772544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 214 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 4921772544 is about 70155.3457977366. The cubic root of 4921772544 is about 1701.0112258154.

The spelling of 4921772544 in words is "four billion, nine hundred twenty-one million, seven hundred seventy-two thousand, five hundred forty-four".