6425616187 has 2 divisors, whose sum is σ = 6425616188. Its totient is φ = 6425616186.

The previous prime is 6425616167. The next prime is 6425616269. The reversal of 6425616187 is 7816165246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6425616187 - 2²⁷ = 6291398459 is a prime.

It is not a weakly prime, because it can be changed into another prime (6425616167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212808093 + 3212808094.

It is an arithmetic number, because the mean of its divisors is an integer number (3212808094).

Almost surely, 2^6425616187 is an apocalyptic number.

6425616187 is a deficient number, since it is larger than the sum of its proper divisors (1).

6425616187 is an equidigital number, since it uses as much as digits as its factorization.

6425616187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 6425616187 is about 80159.9412861561. The cubic root of 6425616187 is about 1859.1093152373.

The spelling of 6425616187 in words is "six billion, four hundred twenty-five million, six hundred sixteen thousand, one hundred eighty-seven".