4649108881 has 16 divisors (see below), whose sum is σ = 4993090128. Its totient is φ = 4313344000.

The previous prime is 4649108869. The next prime is 4649108899. The reversal of 4649108881 is 1888019464.

It can be written as a sum of positive squares in 8 ways, for example, as 3459600 + 4645649281 = 1860^2 + 68159^2 .

It is a cyclic number.

It is not a de Polignac number, because 4649108881 - 2²¹ = 4647011729 is a prime.

It is a super-2 number, since 2×4649108881² = 43228426774786144322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4649108861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394251 + ... + 405871.

It is an arithmetic number, because the mean of its divisors is an integer number (312068133).

Almost surely, 2^4649108881 is an apocalyptic number.

It is an amenable number.

4649108881 is a deficient number, since it is larger than the sum of its proper divisors (343981247).

4649108881 is a wasteful number, since it uses less digits than its factorization.

4649108881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11972.

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 4649108881 is about 68184.3741703332. The cubic root of 4649108881 is about 1669.0009061006. Note that the first 3 decimals are identical.

The spelling of 4649108881 in words is "four billion, six hundred forty-nine million, one hundred eight thousand, eight hundred eighty-one".