12726106357 has 2 divisors, whose sum is σ = 12726106358. Its totient is φ = 12726106356.

The previous prime is 12726106307. The next prime is 12726106363. The reversal of 12726106357 is 75360162721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11315427876 + 1410678481 = 106374^2 + 37559^2 .

It is a cyclic number.

It is not a de Polignac number, because 12726106357 - 2¹⁵ = 12726073589 is a prime.

It is a super-2 number, since 2×12726106357² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12726106307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6363053178 + 6363053179.

It is an arithmetic number, because the mean of its divisors is an integer number (6363053179).

Almost surely, 2^12726106357 is an apocalyptic number.

It is an amenable number.

12726106357 is a deficient number, since it is larger than the sum of its proper divisors (1).

12726106357 is an equidigital number, since it uses as much as digits as its factorization.

12726106357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 12726106357 in words is "twelve billion, seven hundred twenty-six million, one hundred six thousand, three hundred fifty-seven".