26671388353 has 2 divisors, whose sum is σ = 26671388354. Its totient is φ = 26671388352.

The previous prime is 26671388333. The next prime is 26671388357. The reversal of 26671388353 is 35388317662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26654807169 + 16581184 = 163263^2 + 4072^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26671388353 is a prime.

It is a super-2 number, since 2×26671388353² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26671388353.

It is not a weakly prime, because it can be changed into another prime (26671388357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13335694176 + 13335694177.

It is an arithmetic number, because the mean of its divisors is an integer number (13335694177).

Almost surely, 2^26671388353 is an apocalyptic number.

It is an amenable number.

26671388353 is a deficient number, since it is larger than the sum of its proper divisors (1).

26671388353 is an equidigital number, since it uses as much as digits as its factorization.

26671388353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 52.

The spelling of 26671388353 in words is "twenty-six billion, six hundred seventy-one million, three hundred eighty-eight thousand, three hundred fifty-three".