242564082377 has 4 divisors (see below), whose sum is σ = 245886878100. Its totient is φ = 239241286656.

The previous prime is 242564082317. The next prime is 242564082391. The reversal of 242564082377 is 773280465242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 208479907216 + 34084175161 = 456596^2 + 184619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242564082377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242564082317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661397752 + ... + 1661397897.

It is an arithmetic number, because the mean of its divisors is an integer number (61471719525).

Almost surely, 2^242564082377 is an apocalyptic number.

It is an amenable number.

242564082377 is a deficient number, since it is larger than the sum of its proper divisors (3322795723).

242564082377 is an equidigital number, since it uses as much as digits as its factorization.

242564082377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322795722.

The product of its (nonzero) digits is 4515840, while the sum is 50.

The spelling of 242564082377 in words is "two hundred forty-two billion, five hundred sixty-four million, eighty-two thousand, three hundred seventy-seven".