242777466770257 has 8 divisors (see below), whose sum is σ = 242809660749600. Its totient is φ = 242745273793440.

The previous prime is 242777466770159. The next prime is 242777466770273. The reversal of 242777466770257 is 752077664777242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242777466770257 - 2⁷ = 242777466770129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242777466770257.

It is not an unprimeable number, because it can be changed into a prime (242777466770857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568031157 + ... + 568458397.

It is an arithmetic number, because the mean of its divisors is an integer number (30351207593700).

Almost surely, 2^{242777466770257} is an apocalyptic number.

It is an amenable number.

242777466770257 is a deficient number, since it is larger than the sum of its proper divisors (32193979343).

242777466770257 is an equidigital number, since it uses as much as digits as its factorization.

242777466770257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501263.

The product of its (nonzero) digits is 2710632960, while the sum is 73.

The spelling of 242777466770257 in words is "two hundred forty-two trillion, seven hundred seventy-seven billion, four hundred sixty-six million, seven hundred seventy thousand, two hundred fifty-seven".