4909795128 has 256 divisors, whose sum is σ = 16253952000. Its totient is φ = 1345092480.

The previous prime is 4909795127. The next prime is 4909795139. The reversal of 4909795128 is 8215979094.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909795123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45043938 + ... + 45044046.

It is an arithmetic number, because the mean of its divisors is an integer number (63492000).

Almost surely, 2^4909795128 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 4909795128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8126976000).

4909795128 is an abundant number, since it is smaller than the sum of its proper divisors (11344156872).

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

4909795128 is a wasteful number, since it uses less digits than its factorization.

4909795128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The square root of 4909795128 is about 70069.9302696956. The cubic root of 4909795128 is about 1699.6302688437.

The spelling of 4909795128 in words is "four billion, nine hundred nine million, seven hundred ninety-five thousand, one hundred twenty-eight".