11914178326261 has 2 divisors, whose sum is σ = 11914178326262. Its totient is φ = 11914178326260.

The previous prime is 11914178326241. The next prime is 11914178326301. The reversal of 11914178326261 is 16262387141911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9819486563236 + 2094691763025 = 3133606^2 + 1447305^2 .

It is a cyclic number.

It is not a de Polignac number, because 11914178326261 - 2¹³ = 11914178318069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11914178326199 and 11914178326208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11914178326241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5957089163130 + 5957089163131.

It is an arithmetic number, because the mean of its divisors is an integer number (5957089163131).

Almost surely, 2^{11914178326261} is an apocalyptic number.

It is an amenable number.

11914178326261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11914178326261 is an equidigital number, since it uses as much as digits as its factorization.

11914178326261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The spelling of 11914178326261 in words is "eleven trillion, nine hundred fourteen billion, one hundred seventy-eight million, three hundred twenty-six thousand, two hundred sixty-one".