5191293427689 has 4 divisors (see below), whose sum is σ = 6921724570256. Its totient is φ = 3460862285124.

The previous prime is 5191293427681. The next prime is 5191293427759. The reversal of 5191293427689 is 9867243921915.

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 not a de Polignac number, because 5191293427689 - 2³ = 5191293427681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5191293427681) 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, 865215571279 + ... + 865215571284.

It is an arithmetic number, because the mean of its divisors is an integer number (1730431142564).

Almost surely, 2^{5191293427689} is an apocalyptic number.

It is an amenable number.

5191293427689 is a deficient number, since it is larger than the sum of its proper divisors (1730431142567).

5191293427689 is a wasteful number, since it uses less digits than its factorization.

5191293427689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730431142566.

The product of its digits is 58786560, while the sum is 66.

The spelling of 5191293427689 in words is "five trillion, one hundred ninety-one billion, two hundred ninety-three million, four hundred twenty-seven thousand, six hundred eighty-nine".