28689288313123 has 2 divisors, whose sum is σ = 28689288313124. Its totient is φ = 28689288313122.

The previous prime is 28689288313099. The next prime is 28689288313159. The reversal of 28689288313123 is 32131388298682.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28689288313123 is a prime.

It is not a weakly prime, because it can be changed into another prime (28689288313183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14344644156561 + 14344644156562.

It is an arithmetic number, because the mean of its divisors is an integer number (14344644156562).

Almost surely, 2^{28689288313123} is an apocalyptic number.

28689288313123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28689288313123 is an equidigital number, since it uses as much as digits as its factorization.

28689288313123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47775744, while the sum is 64.

The spelling of 28689288313123 in words is "twenty-eight trillion, six hundred eighty-nine billion, two hundred eighty-eight million, three hundred thirteen thousand, one hundred twenty-three".