4689554721 has 4 divisors (see below), whose sum is σ = 6252739632. Its totient is φ = 3126369812.

The previous prime is 4689554719. The next prime is 4689554731. The reversal of 4689554721 is 1274559864.

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 not a de Polignac number, because 4689554721 - 2¹ = 4689554719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4689554731) 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, 781592451 + ... + 781592456.

It is an arithmetic number, because the mean of its divisors is an integer number (1563184908).

Almost surely, 2^4689554721 is an apocalyptic number.

It is an amenable number.

4689554721 is a deficient number, since it is larger than the sum of its proper divisors (1563184911).

4689554721 is a wasteful number, since it uses less digits than its factorization.

4689554721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563184910.

The product of its digits is 2419200, while the sum is 51.

The square root of 4689554721 is about 68480.3236046676. The cubic root of 4689554721 is about 1673.8268724518.

The spelling of 4689554721 in words is "four billion, six hundred eighty-nine million, five hundred fifty-four thousand, seven hundred twenty-one".