242820795915671 has 6 divisors (see below), whose sum is σ = 253837240343400. Its totient is φ = 232263370005788.

The previous prime is 242820795915631. The next prime is 242820795915701. The reversal of 242820795915671 is 176519597028242.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-242820795915671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242820795915601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229509258371 + ... + 229509259428.

It is an arithmetic number, because the mean of its divisors is an integer number (42306206723900).

Almost surely, 2^{242820795915671} is an apocalyptic number.

242820795915671 is a deficient number, since it is larger than the sum of its proper divisors (11016444427729).

242820795915671 is an equidigital number, since it uses as much as digits as its factorization.

242820795915671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459018517845 (or 459018517822 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 68.

The spelling of 242820795915671 in words is "two hundred forty-two trillion, eight hundred twenty billion, seven hundred ninety-five million, nine hundred fifteen thousand, six hundred seventy-one".