28478274942041 has 2 divisors, whose sum is σ = 28478274942042. Its totient is φ = 28478274942040.

The previous prime is 28478274941993. The next prime is 28478274942071. The reversal of 28478274942041 is 14024947287482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28478274942016 + 25 = 5336504^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28478274942041 is a prime.

It is a super-2 number, since 2×28478274942041² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28478274942071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14239137471020 + 14239137471021.

It is an arithmetic number, because the mean of its divisors is an integer number (14239137471021).

Almost surely, 2^{28478274942041} is an apocalyptic number.

It is an amenable number.

28478274942041 is a deficient number, since it is larger than the sum of its proper divisors (1).

28478274942041 is an equidigital number, since it uses as much as digits as its factorization.

28478274942041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57802752, while the sum is 62.

The spelling of 28478274942041 in words is "twenty-eight trillion, four hundred seventy-eight billion, two hundred seventy-four million, nine hundred forty-two thousand, forty-one".