28846440187 has 2 divisors, whose sum is σ = 28846440188. Its totient is φ = 28846440186.

The previous prime is 28846440169. The next prime is 28846440229. The reversal of 28846440187 is 78104464882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28846440187 - 2¹¹ = 28846438139 is a prime.

It is a super-2 number, since 2×28846440187² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28846440107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14423220093 + 14423220094.

It is an arithmetic number, because the mean of its divisors is an integer number (14423220094).

Almost surely, 2^28846440187 is an apocalyptic number.

28846440187 is a deficient number, since it is larger than the sum of its proper divisors (1).

28846440187 is an equidigital number, since it uses as much as digits as its factorization.

28846440187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 28846440187 in words is "twenty-eight billion, eight hundred forty-six million, four hundred forty thousand, one hundred eighty-seven".