28858574444393 has 2 divisors, whose sum is σ = 28858574444394. Its totient is φ = 28858574444392.

The previous prime is 28858574444351. The next prime is 28858574444411. The reversal of 28858574444393 is 39344447585882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23497645468969 + 5360928975424 = 4847437^2 + 2315368^2 .

It is a cyclic number.

It is not a de Polignac number, because 28858574444393 - 2³² = 28854279477097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28858574444393.

It is not a weakly prime, because it can be changed into another prime (28858574444303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14429287222196 + 14429287222197.

It is an arithmetic number, because the mean of its divisors is an integer number (14429287222197).

Almost surely, 2^{28858574444393} is an apocalyptic number.

It is an amenable number.

28858574444393 is a deficient number, since it is larger than the sum of its proper divisors (1).

28858574444393 is an equidigital number, since it uses as much as digits as its factorization.

28858574444393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3715891200, while the sum is 74.

The spelling of 28858574444393 in words is "twenty-eight trillion, eight hundred fifty-eight billion, five hundred seventy-four million, four hundred forty-four thousand, three hundred ninety-three".