186225968867 has 2 divisors, whose sum is σ = 186225968868. Its totient is φ = 186225968866.

The previous prime is 186225968861. The next prime is 186225968899. The reversal of 186225968867 is 768869522681.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 186225968867 - 2¹⁰ = 186225967843 is a prime.

It is a super-2 number, since 2×186225968867² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 186225968797 and 186225968806.

It is not a weakly prime, because it can be changed into another prime (186225968861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93112984433 + 93112984434.

It is an arithmetic number, because the mean of its divisors is an integer number (93112984434).

Almost surely, 2^186225968867 is an apocalyptic number.

186225968867 is a deficient number, since it is larger than the sum of its proper divisors (1).

186225968867 is an equidigital number, since it uses as much as digits as its factorization.

186225968867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139345920, while the sum is 68.

The spelling of 186225968867 in words is "one hundred eighty-six billion, two hundred twenty-five million, nine hundred sixty-eight thousand, eight hundred sixty-seven".