28134303356857 has 2 divisors, whose sum is σ = 28134303356858. Its totient is φ = 28134303356856.

The previous prime is 28134303356839. The next prime is 28134303356903. The reversal of 28134303356857 is 75865330343182.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22442352376896 + 5691950979961 = 4737336^2 + 2385781^2 .

It is a cyclic number.

It is not a de Polignac number, because 28134303356857 - 2³⁵ = 28099943618489 is a prime.

It is not a weakly prime, because it can be changed into another prime (28134303356657) 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, 14067151678428 + 14067151678429.

It is an arithmetic number, because the mean of its divisors is an integer number (14067151678429).

Almost surely, 2^{28134303356857} is an apocalyptic number.

It is an amenable number.

28134303356857 is a deficient number, since it is larger than the sum of its proper divisors (1).

28134303356857 is an equidigital number, since it uses as much as digits as its factorization.

28134303356857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 58.

The spelling of 28134303356857 in words is "twenty-eight trillion, one hundred thirty-four billion, three hundred three million, three hundred fifty-six thousand, eight hundred fifty-seven".