12516071719 has 4 divisors (see below), whose sum is σ = 12919816000. Its totient is φ = 12112327440.

The previous prime is 12516071717. The next prime is 12516071779. The reversal of 12516071719 is 91717061521.

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

It is not a de Polignac number, because 12516071719 - 2¹ = 12516071717 is a prime.

It is a super-2 number, since 2×12516071719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516071717) 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, 201872094 + ... + 201872155.

It is an arithmetic number, because the mean of its divisors is an integer number (3229954000).

Almost surely, 2^12516071719 is an apocalyptic number.

12516071719 is a deficient number, since it is larger than the sum of its proper divisors (403744281).

12516071719 is an equidigital number, since it uses as much as digits as its factorization.

12516071719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403744280.

The product of its (nonzero) digits is 26460, while the sum is 40.

The spelling of 12516071719 in words is "twelve billion, five hundred sixteen million, seventy-one thousand, seven hundred nineteen".