4453312749 has 4 divisors (see below), whose sum is σ = 5937750336. Its totient is φ = 2968875164.

The previous prime is 4453312733. The next prime is 4453312783. The reversal of 4453312749 is 9472133544.

It is a happy number.

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 4453312749 - 2⁴ = 4453312733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4453312749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4453312709) 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, 742218789 + ... + 742218794.

It is an arithmetic number, because the mean of its divisors is an integer number (1484437584).

Almost surely, 2^4453312749 is an apocalyptic number.

It is an amenable number.

4453312749 is a deficient number, since it is larger than the sum of its proper divisors (1484437587).

4453312749 is a wasteful number, since it uses less digits than its factorization.

4453312749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484437586.

The product of its digits is 362880, while the sum is 42.

The square root of 4453312749 is about 66733.1458047648. The cubic root of 4453312749 is about 1645.2342123318.

The spelling of 4453312749 in words is "four billion, four hundred fifty-three million, three hundred twelve thousand, seven hundred forty-nine".