28354868855039 has 2 divisors, whose sum is σ = 28354868855040. Its totient is φ = 28354868855038.

The previous prime is 28354868854999. The next prime is 28354868855099. The reversal of 28354868855039 is 93055886845382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28354868855039 - 2⁸ = 28354868854783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28354868855099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14177434427519 + 14177434427520.

It is an arithmetic number, because the mean of its divisors is an integer number (14177434427520).

Almost surely, 2^{28354868855039} is an apocalyptic number.

28354868855039 is a deficient number, since it is larger than the sum of its proper divisors (1).

28354868855039 is an equidigital number, since it uses as much as digits as its factorization.

28354868855039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656000, while the sum is 74.

The spelling of 28354868855039 in words is "twenty-eight trillion, three hundred fifty-four billion, eight hundred sixty-eight million, eight hundred fifty-five thousand, thirty-nine".