4575773921 has 18 divisors (see below), whose sum is σ = 4780139238. Its totient is φ = 4380055680.

The previous prime is 4575773899. The next prime is 4575773947. The reversal of 4575773921 is 1293775754.

It can be written as a sum of positive squares in 3 ways, for example, as 847450321 + 3728323600 = 29111^2 + 61060^2 .

It is not a de Polignac number, because 4575773921 - 2¹⁸ = 4575511777 is a prime.

It is a super-2 number, since 2×4575773921² = 41875413952207428482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4575773921.

It is not an unprimeable number, because it can be changed into a prime (4575773221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5193401 + ... + 5194281.

It is an arithmetic number, because the mean of its divisors is an integer number (265563291).

Almost surely, 2^4575773921 is an apocalyptic number.

It is an amenable number.

4575773921 is a deficient number, since it is larger than the sum of its proper divisors (204365317).

4575773921 is an frugal number, since it uses more digits than its factorization.

4575773921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 977 counting only the distinct ones).

The product of its digits is 1852200, while the sum is 50.

The square root of 4575773921 is about 67644.4670390713. The cubic root of 4575773921 is about 1660.1787586321.

The spelling of 4575773921 in words is "four billion, five hundred seventy-five million, seven hundred seventy-three thousand, nine hundred twenty-one".