226540712686949 has 2 divisors, whose sum is σ = 226540712686950. Its totient is φ = 226540712686948.

The previous prime is 226540712686919. The next prime is 226540712686961. The reversal of 226540712686949 is 949686217045622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180032472793924 + 46508239893025 = 13417618^2 + 6819695^2 .

It is a cyclic number.

It is not a de Polignac number, because 226540712686949 - 2⁸ = 226540712686693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226540712686919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113270356343474 + 113270356343475.

It is an arithmetic number, because the mean of its divisors is an integer number (113270356343475).

Almost surely, 2^{226540712686949} is an apocalyptic number.

It is an amenable number.

226540712686949 is a deficient number, since it is larger than the sum of its proper divisors (1).

226540712686949 is an equidigital number, since it uses as much as digits as its factorization.

226540712686949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 627056640, while the sum is 71.

The spelling of 226540712686949 in words is "two hundred twenty-six trillion, five hundred forty billion, seven hundred twelve million, six hundred eighty-six thousand, nine hundred forty-nine".