12587905423 has 2 divisors, whose sum is σ = 12587905424. Its totient is φ = 12587905422.

The previous prime is 12587905349. The next prime is 12587905511. The reversal of 12587905423 is 32450978521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12587905423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12587905223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6293952711 + 6293952712.

It is an arithmetic number, because the mean of its divisors is an integer number (6293952712).

Almost surely, 2^12587905423 is an apocalyptic number.

12587905423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12587905423 is an equidigital number, since it uses as much as digits as its factorization.

12587905423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 12587905423 in words is "twelve billion, five hundred eighty-seven million, nine hundred five thousand, four hundred twenty-three".