4472261281 has 4 divisors (see below), whose sum is σ = 4735335492. Its totient is φ = 4209187072.

The previous prime is 4472261279. The next prime is 4472261309. The reversal of 4472261281 is 1821622744.

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 1471412881 + 3000848400 = 38359^2 + 54780^2 .

It is a cyclic number.

It is not a de Polignac number, because 4472261281 - 2¹ = 4472261279 is a prime.

It is a super-2 number, since 2×4472261281² = 40002241931063521922, 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 4472261281.

It is not an unprimeable number, because it can be changed into a prime (4472261201) 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, 131537080 + ... + 131537113.

It is an arithmetic number, because the mean of its divisors is an integer number (1183833873).

Almost surely, 2^4472261281 is an apocalyptic number.

It is an amenable number.

4472261281 is a deficient number, since it is larger than the sum of its proper divisors (263074211).

4472261281 is a wasteful number, since it uses less digits than its factorization.

4472261281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263074210.

The product of its digits is 43008, while the sum is 37.

The square root of 4472261281 is about 66874.9675214874. The cubic root of 4472261281 is about 1647.5643624627.

The spelling of 4472261281 in words is "four billion, four hundred seventy-two million, two hundred sixty-one thousand, two hundred eighty-one".