28219632163 has 2 divisors, whose sum is σ = 28219632164. Its totient is φ = 28219632162.

The previous prime is 28219632139. The next prime is 28219632211. The reversal of 28219632163 is 36123691282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28219632163 - 2⁹ = 28219631651 is a prime.

It is not a weakly prime, because it can be changed into another prime (28219630163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14109816081 + 14109816082.

It is an arithmetic number, because the mean of its divisors is an integer number (14109816082).

Almost surely, 2^28219632163 is an apocalyptic number.

28219632163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28219632163 is an equidigital number, since it uses as much as digits as its factorization.

28219632163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The spelling of 28219632163 in words is "twenty-eight billion, two hundred nineteen million, six hundred thirty-two thousand, one hundred sixty-three".