28601458600081 has 2 divisors, whose sum is σ = 28601458600082. Its totient is φ = 28601458600080.

The previous prime is 28601458600067. The next prime is 28601458600097. The reversal of 28601458600081 is 18000685410682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28389619332481 + 211839267600 = 5328191^2 + 460260^2 .

It is a cyclic number.

It is not a de Polignac number, because 28601458600081 - 2¹¹ = 28601458598033 is a prime.

It is a super-2 number, since 2×28601458600081² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28601458599998 and 28601458600034.

It is not a weakly prime, because it can be changed into another prime (28601458600021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14300729300040 + 14300729300041.

It is an arithmetic number, because the mean of its divisors is an integer number (14300729300041).

Almost surely, 2^{28601458600081} is an apocalyptic number.

It is an amenable number.

28601458600081 is a deficient number, since it is larger than the sum of its proper divisors (1).

28601458600081 is an equidigital number, since it uses as much as digits as its factorization.

28601458600081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 28601458600081 in words is "twenty-eight trillion, six hundred one billion, four hundred fifty-eight million, six hundred thousand, eighty-one".