1828457473 has 4 divisors (see below), whose sum is σ = 1907955648. Its totient is φ = 1748959300.

The previous prime is 1828457471. The next prime is 1828457479. The reversal of 1828457473 is 3747548281.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3747548281 = 139 ⋅26960779.

It is a cyclic number.

It is not a de Polignac number, because 1828457473 - 2¹ = 1828457471 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1828457471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39749053 + ... + 39749098.

It is an arithmetic number, because the mean of its divisors is an integer number (476988912).

Almost surely, 2^1828457473 is an apocalyptic number.

It is an amenable number.

1828457473 is a deficient number, since it is larger than the sum of its proper divisors (79498175).

1828457473 is an equidigital number, since it uses as much as digits as its factorization.

1828457473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79498174.

The product of its digits is 1505280, while the sum is 49.

The square root of 1828457473 is about 42760.4662392729. The cubic root of 1828457473 is about 1222.8174321049.

It can be divided in two parts, 18284 and 57473, that added together give a palindrome (75757).

The spelling of 1828457473 in words is "one billion, eight hundred twenty-eight million, four hundred fifty-seven thousand, four hundred seventy-three".