264840486077 has 2 divisors, whose sum is σ = 264840486078. Its totient is φ = 264840486076.

The previous prime is 264840486067. The next prime is 264840486083. The reversal of 264840486077 is 770684048462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222770784196 + 42069701881 = 471986^2 + 205109^2 .

It is a cyclic number.

It is not a de Polignac number, because 264840486077 - 2⁶ = 264840486013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264840486067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132420243038 + 132420243039.

It is an arithmetic number, because the mean of its divisors is an integer number (132420243039).

Almost surely, 2^264840486077 is an apocalyptic number.

It is an amenable number.

264840486077 is a deficient number, since it is larger than the sum of its proper divisors (1).

264840486077 is an equidigital number, since it uses as much as digits as its factorization.

264840486077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14450688, while the sum is 56.

The spelling of 264840486077 in words is "two hundred sixty-four billion, eight hundred forty million, four hundred eighty-six thousand, seventy-seven".