7443706768840 has 16 divisors (see below), whose sum is σ = 16748340229980. Its totient is φ = 2977482707520.

The previous prime is 7443706768811. The next prime is 7443706768843. The reversal of 7443706768840 is 488676073447.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7377123159396 + 66583609444 = 2716086^2 + 258038^2 .

It is not an unprimeable number, because it can be changed into a prime (7443706768843) 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, 93046334571 + ... + 93046334650.

Almost surely, 2^{7443706768840} is an apocalyptic number.

It is an amenable number.

7443706768840 is an abundant number, since it is smaller than the sum of its proper divisors (9304633461140).

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

7443706768840 is a wasteful number, since it uses less digits than its factorization.

7443706768840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186092669232 (or 186092669228 counting only the distinct ones).

The product of its (nonzero) digits is 151732224, while the sum is 64.

The spelling of 7443706768840 in words is "seven trillion, four hundred forty-three billion, seven hundred six million, seven hundred sixty-eight thousand, eight hundred forty".