12915585587 has 2 divisors, whose sum is σ = 12915585588. Its totient is φ = 12915585586.

The previous prime is 12915585503. The next prime is 12915585589. The reversal of 12915585587 is 78558551921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12915585587 is a prime.

Together with 12915585589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12915585589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457792793 + 6457792794.

It is an arithmetic number, because the mean of its divisors is an integer number (6457792794).

Almost surely, 2^12915585587 is an apocalyptic number.

12915585587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12915585587 is an equidigital number, since it uses as much as digits as its factorization.

12915585587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040000, while the sum is 56.

The spelling of 12915585587 in words is "twelve billion, nine hundred fifteen million, five hundred eighty-five thousand, five hundred eighty-seven".