12857338073 has 2 divisors, whose sum is σ = 12857338074. Its totient is φ = 12857338072.

The previous prime is 12857338037. The next prime is 12857338079. The reversal of 12857338073 is 37083375821.

Together with previous prime (12857338037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9695750089 + 3161587984 = 98467^2 + 56228^2 .

It is a cyclic number.

It is not a de Polignac number, because 12857338073 - 2¹⁴ = 12857321689 is a prime.

It is a super-2 number, since 2×12857338073² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12857338079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428669036 + 6428669037.

It is an arithmetic number, because the mean of its divisors is an integer number (6428669037).

Almost surely, 2^12857338073 is an apocalyptic number.

It is an amenable number.

12857338073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12857338073 is an equidigital number, since it uses as much as digits as its factorization.

12857338073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 12857338073 in words is "twelve billion, eight hundred fifty-seven million, three hundred thirty-eight thousand, seventy-three".