5191712740009 has 4 divisors (see below), whose sum is σ = 5191824261316. Its totient is φ = 5191601218704.

The previous prime is 5191712740001. The next prime is 5191712740063. The reversal of 5191712740009 is 9000472171915.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1504437168025 + 3687275571984 = 1226555^2 + 1920228^2 .

It is a cyclic number.

It is not a de Polignac number, because 5191712740009 - 2³ = 5191712740001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5191712740001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55690794 + ... + 55783939.

It is an arithmetic number, because the mean of its divisors is an integer number (1297956065329).

Almost surely, 2^{5191712740009} is an apocalyptic number.

It is an amenable number.

5191712740009 is a deficient number, since it is larger than the sum of its proper divisors (111521307).

5191712740009 is a wasteful number, since it uses less digits than its factorization.

5191712740009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111521306.

The product of its (nonzero) digits is 158760, while the sum is 46.

The spelling of 5191712740009 in words is "five trillion, one hundred ninety-one billion, seven hundred twelve million, seven hundred forty thousand, nine".