28585160447 has 2 divisors, whose sum is σ = 28585160448. Its totient is φ = 28585160446.

The previous prime is 28585160437. The next prime is 28585160501. The reversal of 28585160447 is 74406158582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28585160447 is a prime.

It is a super-2 number, since 2×28585160447² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28585160395 and 28585160404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28585160437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14292580223 + 14292580224.

It is an arithmetic number, because the mean of its divisors is an integer number (14292580224).

Almost surely, 2^28585160447 is an apocalyptic number.

28585160447 is a deficient number, since it is larger than the sum of its proper divisors (1).

28585160447 is an equidigital number, since it uses as much as digits as its factorization.

28585160447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 28585160447 in words is "twenty-eight billion, five hundred eighty-five million, one hundred sixty thousand, four hundred forty-seven".