4909649056 has 72 divisors (see below), whose sum is σ = 10756894932. Its totient is φ = 2192716800.

The previous prime is 4909649051. The next prime is 4909649071. The reversal of 4909649056 is 6509469094.

It can be written as a sum of positive squares in 2 ways, for example, as 4908403600 + 1245456 = 70060^2 + 1116^2 .

It is a super-2 number, since 2×4909649056² = 48209307706163382272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 4909648994 and 4909649012.

It is not an unprimeable number, because it can be changed into a prime (4909649051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393636 + ... + 405916.

Almost surely, 2^4909649056 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 4909649056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5378447466).

4909649056 is an abundant number, since it is smaller than the sum of its proper divisors (5847245876).

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

4909649056 is a wasteful number, since it uses less digits than its factorization.

4909649056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12366 (or 12327 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The square root of 4909649056 is about 70068.8879318061. The cubic root of 4909649056 is about 1699.6134133641.

The spelling of 4909649056 in words is "four billion, nine hundred nine million, six hundred forty-nine thousand, fifty-six".