4728373481 has 4 divisors (see below), whose sum is σ = 5092094532. Its totient is φ = 4364652432.

The previous prime is 4728373471. The next prime is 4728373493. The reversal of 4728373481 is 1843738274.

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 1923611881 + 2804761600 = 43859^2 + 52960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4728373481 is a prime.

It is a super-2 number, since 2×4728373481² = 44715031551648114722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4728373471) 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, 181860506 + ... + 181860531.

It is an arithmetic number, because the mean of its divisors is an integer number (1273023633).

Almost surely, 2^4728373481 is an apocalyptic number.

It is an amenable number.

4728373481 is a deficient number, since it is larger than the sum of its proper divisors (363721051).

4728373481 is a wasteful number, since it uses less digits than its factorization.

4728373481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363721050.

The product of its digits is 903168, while the sum is 47.

The square root of 4728373481 is about 68763.1695095565. The cubic root of 4728373481 is about 1678.4326700649.

The spelling of 4728373481 in words is "four billion, seven hundred twenty-eight million, three hundred seventy-three thousand, four hundred eighty-one".