2421418187 has 2 divisors, whose sum is σ = 2421418188. Its totient is φ = 2421418186.

The previous prime is 2421418183. The next prime is 2421418213. The reversal of 2421418187 is 7818141242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421418187 - 2² = 2421418183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2421418187.

It is not a weakly prime, because it can be changed into another prime (2421418183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210709093 + 1210709094.

It is an arithmetic number, because the mean of its divisors is an integer number (1210709094).

Almost surely, 2^2421418187 is an apocalyptic number.

2421418187 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421418187 is an equidigital number, since it uses as much as digits as its factorization.

2421418187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28672, while the sum is 38.

The square root of 2421418187 is about 49207.9077689755. The cubic root of 2421418187 is about 1342.8368996824.

The spelling of 2421418187 in words is "two billion, four hundred twenty-one million, four hundred eighteen thousand, one hundred eighty-seven".