28504208629123 has 2 divisors, whose sum is σ = 28504208629124. Its totient is φ = 28504208629122.

The previous prime is 28504208629093. The next prime is 28504208629177. The reversal of 28504208629123 is 32192680240582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28504208629123 is a prime.

It is not a weakly prime, because it can be changed into another prime (28504208689123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14252104314561 + 14252104314562.

It is an arithmetic number, because the mean of its divisors is an integer number (14252104314562).

Almost surely, 2^{28504208629123} is an apocalyptic number.

28504208629123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28504208629123 is an equidigital number, since it uses as much as digits as its factorization.

28504208629123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 28504208629123 in words is "twenty-eight trillion, five hundred four billion, two hundred eight million, six hundred twenty-nine thousand, one hundred twenty-three".