4881666493 has 4 divisors (see below), whose sum is σ = 5325454368. Its totient is φ = 4437878620.

The previous prime is 4881666451. The next prime is 4881666499. The reversal of 4881666493 is 3946661884.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4881666493 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 (4881666499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221893921 + ... + 221893942.

It is an arithmetic number, because the mean of its divisors is an integer number (1331363592).

Almost surely, 2^4881666493 is an apocalyptic number.

It is an amenable number.

4881666493 is a deficient number, since it is larger than the sum of its proper divisors (443787875).

4881666493 is a wasteful number, since it uses less digits than its factorization.

4881666493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443787874.

The product of its digits is 5971968, while the sum is 55.

The square root of 4881666493 is about 69868.9236570881. The cubic root of 4881666493 is about 1696.3782750124.

The spelling of 4881666493 in words is "four billion, eight hundred eighty-one million, six hundred sixty-six thousand, four hundred ninety-three".