12456900187 has 2 divisors, whose sum is σ = 12456900188. Its totient is φ = 12456900186.

The previous prime is 12456900167. The next prime is 12456900259. The reversal of 12456900187 is 78100965421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12456900187 is a prime.

It is not a weakly prime, because it can be changed into another prime (12456900167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228450093 + 6228450094.

It is an arithmetic number, because the mean of its divisors is an integer number (6228450094).

Almost surely, 2^12456900187 is an apocalyptic number.

12456900187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12456900187 is an equidigital number, since it uses as much as digits as its factorization.

12456900187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 12456900187 in words is "twelve billion, four hundred fifty-six million, nine hundred thousand, one hundred eighty-seven".