12577719871 has 2 divisors, whose sum is σ = 12577719872. Its totient is φ = 12577719870.

The previous prime is 12577719853. The next prime is 12577719893. The reversal of 12577719871 is 17891777521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12577719871 - 2⁹ = 12577719359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12577719821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6288859935 + 6288859936.

It is an arithmetic number, because the mean of its divisors is an integer number (6288859936).

Almost surely, 2^12577719871 is an apocalyptic number.

12577719871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12577719871 is an equidigital number, since it uses as much as digits as its factorization.

12577719871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728720, while the sum is 55.

The spelling of 12577719871 in words is "twelve billion, five hundred seventy-seven million, seven hundred nineteen thousand, eight hundred seventy-one".