7644849640852 has 12 divisors (see below), whose sum is σ = 13476140061300. Its totient is φ = 3794523909056.

The previous prime is 7644849640843. The next prime is 7644849640907. The reversal of 7644849640852 is 2580469484467.

It can be written as a sum of positive squares in 2 ways, for example, as 6431935087876 + 1212914552976 = 2536126^2 + 1101324^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6975227227 + ... + 6975228322.

It is an arithmetic number, because the mean of its divisors is an integer number (1123011671775).

Almost surely, 2^{7644849640852} is an apocalyptic number.

It is an amenable number.

7644849640852 is a deficient number, since it is larger than the sum of its proper divisors (5831290420448).

7644849640852 is a wasteful number, since it uses less digits than its factorization.

7644849640852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13950455690 (or 13950455688 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 67.

The spelling of 7644849640852 in words is "seven trillion, six hundred forty-four billion, eight hundred forty-nine million, six hundred forty thousand, eight hundred fifty-two".