12516727705077 has 4 divisors (see below), whose sum is σ = 16688970273440. Its totient is φ = 8344485136716.

The previous prime is 12516727705043. The next prime is 12516727705129. The reversal of 12516727705077 is 77050772761521.

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 12516727705077 - 2¹⁰ = 12516727704053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516727700077) 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, 2086121284177 + ... + 2086121284182.

It is an arithmetic number, because the mean of its divisors is an integer number (4172242568360).

Almost surely, 2^{12516727705077} is an apocalyptic number.

It is an amenable number.

12516727705077 is a deficient number, since it is larger than the sum of its proper divisors (4172242568363).

12516727705077 is an equidigital number, since it uses as much as digits as its factorization.

12516727705077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172242568362.

The product of its (nonzero) digits is 10084200, while the sum is 57.

The spelling of 12516727705077 in words is "twelve trillion, five hundred sixteen billion, seven hundred twenty-seven million, seven hundred five thousand, seventy-seven".