28354868859041 has 2 divisors, whose sum is σ = 28354868859042. Its totient is φ = 28354868859040.

The previous prime is 28354868859007. The next prime is 28354868859101. The reversal of 28354868859041 is 14095886845382.

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., 22470169153441 + 5884699705600 = 4740271^2 + 2425840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28354868859041 is a prime.

It is a super-2 number, since 2×28354868859041² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28354868859001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14177434429520 + 14177434429521.

It is an arithmetic number, because the mean of its divisors is an integer number (14177434429521).

Almost surely, 2^{28354868859041} is an apocalyptic number.

It is an amenable number.

28354868859041 is a deficient number, since it is larger than the sum of its proper divisors (1).

28354868859041 is an equidigital number, since it uses as much as digits as its factorization.

28354868859041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 530841600, while the sum is 71.

The spelling of 28354868859041 in words is "twenty-eight trillion, three hundred fifty-four billion, eight hundred sixty-eight million, eight hundred fifty-nine thousand, forty-one".