6441765734 has 4 divisors (see below), whose sum is σ = 9662648604. Its totient is φ = 3220882866.

The previous prime is 6441765731. The next prime is 6441765769. The reversal of 6441765734 is 4375671446.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441765731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610441432 + ... + 1610441435.

It is an arithmetic number, because the mean of its divisors is an integer number (2415662151).

Almost surely, 2^6441765734 is an apocalyptic number.

6441765734 is a deficient number, since it is larger than the sum of its proper divisors (3220882870).

6441765734 is a wasteful number, since it uses less digits than its factorization.

6441765734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220882869.

The product of its digits is 1693440, while the sum is 47.

The square root of 6441765734 is about 80260.6113482822. The cubic root of 6441765734 is about 1860.6655164620.

The spelling of 6441765734 in words is "six billion, four hundred forty-one million, seven hundred sixty-five thousand, seven hundred thirty-four".