28446267446189 has 2 divisors, whose sum is σ = 28446267446190. Its totient is φ = 28446267446188.

The previous prime is 28446267446167. The next prime is 28446267446251. The reversal of 28446267446189 is 98164476264482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21611964383689 + 6834303062500 = 4648867^2 + 2614250^2 .

It is a cyclic number.

It is not a de Polignac number, because 28446267446189 - 2¹⁶ = 28446267380653 is a prime.

It is a super-2 number, since 2×28446267446189² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28446267446689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14223133723094 + 14223133723095.

It is an arithmetic number, because the mean of its divisors is an integer number (14223133723095).

Almost surely, 2^{28446267446189} is an apocalyptic number.

It is an amenable number.

28446267446189 is a deficient number, since it is larger than the sum of its proper divisors (1).

28446267446189 is an equidigital number, since it uses as much as digits as its factorization.

28446267446189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 891813888, while the sum is 71.

The spelling of 28446267446189 in words is "twenty-eight trillion, four hundred forty-six billion, two hundred sixty-seven million, four hundred forty-six thousand, one hundred eighty-nine".