28605159943 has 2 divisors, whose sum is σ = 28605159944. Its totient is φ = 28605159942.

The previous prime is 28605159937. The next prime is 28605159971. The reversal of 28605159943 is 34995150682.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28605159943 is a prime.

It is a super-2 number, since 2×28605159943² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28605151943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14302579971 + 14302579972.

It is an arithmetic number, because the mean of its divisors is an integer number (14302579972).

Almost surely, 2^28605159943 is an apocalyptic number.

28605159943 is a deficient number, since it is larger than the sum of its proper divisors (1).

28605159943 is an equidigital number, since it uses as much as digits as its factorization.

28605159943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 28605159943 in words is "twenty-eight billion, six hundred five million, one hundred fifty-nine thousand, nine hundred forty-three".