28274636123 has 2 divisors, whose sum is σ = 28274636124. Its totient is φ = 28274636122.

The previous prime is 28274636107. The next prime is 28274636171. The reversal of 28274636123 is 32163647282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28274636123 - 2⁴ = 28274636107 is a prime.

It is a super-2 number, since 2×28274636123² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28274036123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14137318061 + 14137318062.

It is an arithmetic number, because the mean of its divisors is an integer number (14137318062).

Almost surely, 2^28274636123 is an apocalyptic number.

28274636123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28274636123 is an equidigital number, since it uses as much as digits as its factorization.

28274636123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 44.

The spelling of 28274636123 in words is "twenty-eight billion, two hundred seventy-four million, six hundred thirty-six thousand, one hundred twenty-three".