7644446451444 has 48 divisors (see below), whose sum is σ = 19540007746560. Its totient is φ = 2306806451040.

The previous prime is 7644446451419. The next prime is 7644446451469. The reversal of 7644446451444 is 4441546444467.

It is an interprime number because it is at equal distance from previous prime (7644446451419) and next prime (7644446451469).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121124254 + ... + 121187349.

It is an arithmetic number, because the mean of its divisors is an integer number (407083494720).

Almost surely, 2^{7644446451444} is an apocalyptic number.

It is an amenable number.

7644446451444 is an abundant number, since it is smaller than the sum of its proper divisors (11895561295116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7644446451444 is a wasteful number, since it uses less digits than its factorization.

7644446451444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242311860 (or 242311858 counting only the distinct ones).

The product of its digits is 82575360, while the sum is 57.

The spelling of 7644446451444 in words is "seven trillion, six hundred forty-four billion, four hundred forty-six million, four hundred fifty-one thousand, four hundred forty-four".