4581066772 has 24 divisors (see below), whose sum is σ = 8520036840. Its totient is φ = 2147773440.

The previous prime is 4581066769. The next prime is 4581066781. The reversal of 4581066772 is 2776601854.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1581971076 + 2999095696 = 39774^2 + 54764^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106929 + ... + 143512.

It is an arithmetic number, because the mean of its divisors is an integer number (355001535).

Almost surely, 2^4581066772 is an apocalyptic number.

It is an amenable number.

4581066772 is a deficient number, since it is larger than the sum of its proper divisors (3938970068).

4581066772 is a wasteful number, since it uses less digits than its factorization.

4581066772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250731 (or 250729 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 4581066772 is about 67683.5783037511. The cubic root of 4581066772 is about 1660.8186280175.

The spelling of 4581066772 in words is "four billion, five hundred eighty-one million, sixty-six thousand, seven hundred seventy-two".