28872340163 has 2 divisors, whose sum is σ = 28872340164. Its totient is φ = 28872340162.

The previous prime is 28872340121. The next prime is 28872340177. The reversal of 28872340163 is 36104327882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28872340163 - 2¹² = 28872336067 is a prime.

It is a super-2 number, since 2×28872340163² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28872340183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14436170081 + 14436170082.

It is an arithmetic number, because the mean of its divisors is an integer number (14436170082).

Almost surely, 2^28872340163 is an apocalyptic number.

28872340163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28872340163 is an equidigital number, since it uses as much as digits as its factorization.

28872340163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 28872340163 in words is "twenty-eight billion, eight hundred seventy-two million, three hundred forty thousand, one hundred sixty-three".