28394012934137 has 2 divisors, whose sum is σ = 28394012934138. Its totient is φ = 28394012934136.

The previous prime is 28394012934107. The next prime is 28394012934173. The reversal of 28394012934137 is 73143921049382.

Together with next prime (28394012934173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18684706501561 + 9709306432576 = 4322581^2 + 3115976^2 .

It is a cyclic number.

It is not a de Polignac number, because 28394012934137 - 2⁶ = 28394012934073 is a prime.

It is not a weakly prime, because it can be changed into another prime (28394012934107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14197006467068 + 14197006467069.

It is an arithmetic number, because the mean of its divisors is an integer number (14197006467069).

Almost surely, 2^{28394012934137} is an apocalyptic number.

It is an amenable number.

28394012934137 is a deficient number, since it is larger than the sum of its proper divisors (1).

28394012934137 is an equidigital number, since it uses as much as digits as its factorization.

28394012934137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 28394012934137 in words is "twenty-eight trillion, three hundred ninety-four billion, twelve million, nine hundred thirty-four thousand, one hundred thirty-seven".