26275650749 has 2 divisors, whose sum is σ = 26275650750. Its totient is φ = 26275650748.

The previous prime is 26275650647. The next prime is 26275650761. The reversal of 26275650749 is 94705657262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19577046724 + 6698604025 = 139918^2 + 81845^2 .

It is a cyclic number.

It is not a de Polignac number, because 26275650749 - 2²⁴ = 26258873533 is a prime.

It is a super-2 number, since 2×26275650749² (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 26275650749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26275650769) 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, 13137825374 + 13137825375.

It is an arithmetic number, because the mean of its divisors is an integer number (13137825375).

Almost surely, 2^26275650749 is an apocalyptic number.

It is an amenable number.

26275650749 is a deficient number, since it is larger than the sum of its proper divisors (1).

26275650749 is an equidigital number, since it uses as much as digits as its factorization.

26275650749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 26275650749 in words is "twenty-six billion, two hundred seventy-five million, six hundred fifty thousand, seven hundred forty-nine".