6448246187 has 2 divisors, whose sum is σ = 6448246188. Its totient is φ = 6448246186.

The previous prime is 6448246157. The next prime is 6448246223. The reversal of 6448246187 is 7816428446.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6448246187 - 2³² = 2153278891 is a prime.

It is not a weakly prime, because it can be changed into another prime (6448246117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224123093 + 3224123094.

It is an arithmetic number, because the mean of its divisors is an integer number (3224123094).

Almost surely, 2^6448246187 is an apocalyptic number.

6448246187 is a deficient number, since it is larger than the sum of its proper divisors (1).

6448246187 is an equidigital number, since it uses as much as digits as its factorization.

6448246187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2064384, while the sum is 50.

The square root of 6448246187 is about 80300.9725159042. The cubic root of 6448246187 is about 1861.2892540482.

The spelling of 6448246187 in words is "six billion, four hundred forty-eight million, two hundred forty-six thousand, one hundred eighty-seven".