7727681147393 has 4 divisors (see below), whose sum is σ = 7728542563248. Its totient is φ = 7726819731540.

The previous prime is 7727681147377. The next prime is 7727681147401. The reversal of 7727681147393 is 3937411867277.

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 7727681147393 - 2⁴ = 7727681147377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7727581147393) 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, 430694471 + ... + 430712412.

It is an arithmetic number, because the mean of its divisors is an integer number (1932135640812).

Almost surely, 2^{7727681147393} is an apocalyptic number.

It is an amenable number.

7727681147393 is a deficient number, since it is larger than the sum of its proper divisors (861415855).

7727681147393 is an equidigital number, since it uses as much as digits as its factorization.

7727681147393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861415854.

The product of its digits is 74680704, while the sum is 65.

The spelling of 7727681147393 in words is "seven trillion, seven hundred twenty-seven billion, six hundred eighty-one million, one hundred forty-seven thousand, three hundred ninety-three".