12387474287 has 2 divisors, whose sum is σ = 12387474288. Its totient is φ = 12387474286.

The previous prime is 12387474263. The next prime is 12387474313. The reversal of 12387474287 is 78247478321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12387474287 - 2¹² = 12387470191 is a prime.

It is a super-2 number, since 2×12387474287² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12387470287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6193737143 + 6193737144.

It is an arithmetic number, because the mean of its divisors is an integer number (6193737144).

Almost surely, 2^12387474287 is an apocalyptic number.

12387474287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12387474287 is an equidigital number, since it uses as much as digits as its factorization.

12387474287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4214784, while the sum is 53.

The spelling of 12387474287 in words is "twelve billion, three hundred eighty-seven million, four hundred seventy-four thousand, two hundred eighty-seven".