26211773540149 has 2 divisors, whose sum is σ = 26211773540150. Its totient is φ = 26211773540148.

The previous prime is 26211773540033. The next prime is 26211773540191. The reversal of 26211773540149 is 94104537711262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26211143781124 + 629759025 = 5119682^2 + 25095^2 .

It is a cyclic number.

It is not a de Polignac number, because 26211773540149 - 2¹⁷ = 26211773409077 is a prime.

It is a super-2 number, since 2×26211773540149² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26211773540096 and 26211773540105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26211773540749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13105886770074 + 13105886770075.

It is an arithmetic number, because the mean of its divisors is an integer number (13105886770075).

Almost surely, 2^{26211773540149} is an apocalyptic number.

It is an amenable number.

26211773540149 is a deficient number, since it is larger than the sum of its proper divisors (1).

26211773540149 is an equidigital number, since it uses as much as digits as its factorization.

26211773540149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 26211773540149 in words is "twenty-six trillion, two hundred eleven billion, seven hundred seventy-three million, five hundred forty thousand, one hundred forty-nine".