242664052777 has 2 divisors, whose sum is σ = 242664052778. Its totient is φ = 242664052776.

The previous prime is 242664052669. The next prime is 242664052783. The reversal of 242664052777 is 777250466242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207192473856 + 35471578921 = 455184^2 + 188339^2 .

It is a cyclic number.

It is not a de Polignac number, because 242664052777 - 2¹⁵ = 242664020009 is a prime.

It is not a weakly prime, because it can be changed into another prime (242664052877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121332026388 + 121332026389.

It is an arithmetic number, because the mean of its divisors is an integer number (121332026389).

Almost surely, 2^242664052777 is an apocalyptic number.

It is an amenable number.

242664052777 is a deficient number, since it is larger than the sum of its proper divisors (1).

242664052777 is an equidigital number, since it uses as much as digits as its factorization.

242664052777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7902720, while the sum is 52.

The spelling of 242664052777 in words is "two hundred forty-two billion, six hundred sixty-four million, fifty-two thousand, seven hundred seventy-seven".