12423356499487 has 2 divisors, whose sum is σ = 12423356499488. Its totient is φ = 12423356499486.

The previous prime is 12423356499479. The next prime is 12423356499563. The reversal of 12423356499487 is 78499465332421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12423356499487 - 2³ = 12423356499479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12423356496487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6211678249743 + 6211678249744.

It is an arithmetic number, because the mean of its divisors is an integer number (6211678249744).

Almost surely, 2^{12423356499487} is an apocalyptic number.

12423356499487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12423356499487 is an equidigital number, since it uses as much as digits as its factorization.

12423356499487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313528320, while the sum is 67.

The spelling of 12423356499487 in words is "twelve trillion, four hundred twenty-three billion, three hundred fifty-six million, four hundred ninety-nine thousand, four hundred eighty-seven".