28749466125917 has 2 divisors, whose sum is σ = 28749466125918. Its totient is φ = 28749466125916.

The previous prime is 28749466125899. The next prime is 28749466125983. The reversal of 28749466125917 is 71952166494782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17596464494596 + 11153001631321 = 4194814^2 + 3339611^2 .

It is a cyclic number.

It is not a de Polignac number, because 28749466125917 - 2³⁰ = 28748392384093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28749466127917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14374733062958 + 14374733062959.

It is an arithmetic number, because the mean of its divisors is an integer number (14374733062959).

Almost surely, 2^{28749466125917} is an apocalyptic number.

It is an amenable number.

28749466125917 is a deficient number, since it is larger than the sum of its proper divisors (1).

28749466125917 is an equidigital number, since it uses as much as digits as its factorization.

28749466125917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 365783040, while the sum is 71.

The spelling of 28749466125917 in words is "twenty-eight trillion, seven hundred forty-nine billion, four hundred sixty-six million, one hundred twenty-five thousand, nine hundred seventeen".