4331744641 has 4 divisors (see below), whose sum is σ = 4950565312. Its totient is φ = 3712923972.

The previous prime is 4331744611. The next prime is 4331744647. The reversal of 4331744641 is 1464471334.

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 4331744641 - 2⁵ = 4331744609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4331744641.

It is not an unprimeable number, because it can be changed into a prime (4331744647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309410325 + ... + 309410338.

It is an arithmetic number, because the mean of its divisors is an integer number (1237641328).

Almost surely, 2^4331744641 is an apocalyptic number.

It is an amenable number.

4331744641 is a deficient number, since it is larger than the sum of its proper divisors (618820671).

4331744641 is an equidigital number, since it uses as much as digits as its factorization.

4331744641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618820670.

The product of its digits is 96768, while the sum is 37.

The square root of 4331744641 is about 65815.9907697210. The cubic root of 4331744641 is about 1630.1251539267.

The spelling of 4331744641 in words is "four billion, three hundred thirty-one million, seven hundred forty-four thousand, six hundred forty-one".