4528048891 has 4 divisors (see below), whose sum is σ = 4590077032. Its totient is φ = 4466020752.

The previous prime is 4528048879. The next prime is 4528048913. The reversal of 4528048891 is 1988408254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4528048891 - 2²¹ = 4525951739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4528048841) 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, 31013961 + ... + 31014106.

It is an arithmetic number, because the mean of its divisors is an integer number (1147519258).

Almost surely, 2^4528048891 is an apocalyptic number.

4528048891 is a deficient number, since it is larger than the sum of its proper divisors (62028141).

4528048891 is an equidigital number, since it uses as much as digits as its factorization.

4528048891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62028140.

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 4528048891 is about 67290.7786475978. The cubic root of 4528048891 is about 1654.3867220203.

The spelling of 4528048891 in words is "four billion, five hundred twenty-eight million, forty-eight thousand, eight hundred ninety-one".