4644672533 has 4 divisors (see below), whose sum is σ = 4710090528. Its totient is φ = 4579254540.

The previous prime is 4644672491. The next prime is 4644672541. The reversal of 4644672533 is 3352764464.

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.

It is a cyclic number.

It is not a de Polignac number, because 4644672533 - 2⁶ = 4644672469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644672583) 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, 32708891 + ... + 32709032.

It is an arithmetic number, because the mean of its divisors is an integer number (1177522632).

Almost surely, 2^4644672533 is an apocalyptic number.

It is an amenable number.

4644672533 is a deficient number, since it is larger than the sum of its proper divisors (65417995).

4644672533 is an equidigital number, since it uses as much as digits as its factorization.

4644672533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65417994.

The product of its digits is 1451520, while the sum is 44.

The square root of 4644672533 is about 68151.8344067128. The cubic root of 4644672533 is about 1668.4698634563.

The spelling of 4644672533 in words is "four billion, six hundred forty-four million, six hundred seventy-two thousand, five hundred thirty-three".