4891229280 has 384 divisors, whose sum is σ = 20597068800. Its totient is φ = 1059028992.

The previous prime is 4891229279. The next prime is 4891229309. The reversal of 4891229280 is 829221984.

It is a happy number.

4891229280 is a `hidden beast` number, since 489 + 1 + 2 + 2 + 92 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 570304 + ... + 578816.

It is an arithmetic number, because the mean of its divisors is an integer number (53638200).

Almost surely, 2^4891229280 is an apocalyptic number.

4891229280 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 4891229280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10298534400).

4891229280 is an abundant number, since it is smaller than the sum of its proper divisors (15705839520).

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

4891229280 is a wasteful number, since it uses less digits than its factorization.

4891229280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8563 (or 8549 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 4891229280 is about 69937.3239407972. The cubic root of 4891229280 is about 1697.4852414590.

The spelling of 4891229280 in words is "four billion, eight hundred ninety-one million, two hundred twenty-nine thousand, two hundred eighty".