4881024661 has 4 divisors (see below), whose sum is σ = 4894110892. Its totient is φ = 4867938432.

The previous prime is 4881024641. The next prime is 4881024689. The reversal of 4881024661 is 1664201884.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1817402161 + 3063622500 = 42631^2 + 55350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4881024661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4881024601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6542556 + ... + 6543301.

It is an arithmetic number, because the mean of its divisors is an integer number (1223527723).

Almost surely, 2^4881024661 is an apocalyptic number.

It is an amenable number.

4881024661 is a deficient number, since it is larger than the sum of its proper divisors (13086231).

4881024661 is a wasteful number, since it uses less digits than its factorization.

4881024661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13086230.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 4881024661 is about 69864.3303911231. The cubic root of 4881024661 is about 1696.3039262503.

The spelling of 4881024661 in words is "four billion, eight hundred eighty-one million, twenty-four thousand, six hundred sixty-one".