7689712019089 has 3 divisors (see below), whose sum is σ = 7689714792123. Its totient is φ = 7689709246056.

The previous prime is 7689712019083. The next prime is 7689712019137. The reversal of 7689712019089 is 9809102179867.

The square root of 7689712019089 is 2773033.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2344405011025 + 5345307008064 = 1531145^2 + 2311992^2 .

It is not a de Polignac number, because 7689712019089 - 2⁹ = 7689712018577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7689712019083) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1386517 + ... + 4159549.

It is an arithmetic number, because the mean of its divisors is an integer number (2563238264041).

Almost surely, 2^{7689712019089} is an apocalyptic number.

7689712019089 is the 2773033-rd square number.

7689712019089 is the 1386517-th centered octagonal number.

It is an amenable number.

7689712019089 is a deficient number, since it is larger than the sum of its proper divisors (2773034).

7689712019089 is an frugal number, since it uses more digits than its factorization.

7689712019089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546066 (or 2773033 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 67.

The spelling of 7689712019089 in words is "seven trillion, six hundred eighty-nine billion, seven hundred twelve million, nineteen thousand, eighty-nine".