28652371841 has 2 divisors, whose sum is σ = 28652371842. Its totient is φ = 28652371840.

The previous prime is 28652371823. The next prime is 28652371861. The reversal of 28652371841 is 14817325682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28515388225 + 136983616 = 168865^2 + 11704^2 .

It is a cyclic number.

It is not a de Polignac number, because 28652371841 - 2¹⁸ = 28652109697 is a prime.

It is a super-2 number, since 2×28652371841² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28652371861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14326185920 + 14326185921.

It is an arithmetic number, because the mean of its divisors is an integer number (14326185921).

Almost surely, 2^28652371841 is an apocalyptic number.

It is an amenable number.

28652371841 is a deficient number, since it is larger than the sum of its proper divisors (1).

28652371841 is an equidigital number, since it uses as much as digits as its factorization.

28652371841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 47.

The spelling of 28652371841 in words is "twenty-eight billion, six hundred fifty-two million, three hundred seventy-one thousand, eight hundred forty-one".