12508711871 has 2 divisors, whose sum is σ = 12508711872. Its totient is φ = 12508711870.

The previous prime is 12508711829. The next prime is 12508711879. The reversal of 12508711871 is 17811780521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12508711871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12508711879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6254355935 + 6254355936.

It is an arithmetic number, because the mean of its divisors is an integer number (6254355936).

Almost surely, 2^12508711871 is an apocalyptic number.

12508711871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12508711871 is an equidigital number, since it uses as much as digits as its factorization.

12508711871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31360, while the sum is 41.

The spelling of 12508711871 in words is "twelve billion, five hundred eight million, seven hundred eleven thousand, eight hundred seventy-one".