28885858601449 has 2 divisors, whose sum is σ = 28885858601450. Its totient is φ = 28885858601448.

The previous prime is 28885858601443. The next prime is 28885858601573. The reversal of 28885858601449 is 94410685858882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16910846798400 + 11975011803049 = 4112280^2 + 3460493^2 .

It is a cyclic number.

It is not a de Polignac number, because 28885858601449 - 2³ = 28885858601441 is a prime.

It is not a weakly prime, because it can be changed into another prime (28885858601441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14442929300724 + 14442929300725.

It is an arithmetic number, because the mean of its divisors is an integer number (14442929300725).

Almost surely, 2^{28885858601449} is an apocalyptic number.

It is an amenable number.

28885858601449 is a deficient number, since it is larger than the sum of its proper divisors (1).

28885858601449 is an equidigital number, since it uses as much as digits as its factorization.

28885858601449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1415577600, while the sum is 76.

The spelling of 28885858601449 in words is "twenty-eight trillion, eight hundred eighty-five billion, eight hundred fifty-eight million, six hundred one thousand, four hundred forty-nine".