242635047731 has 4 divisors (see below), whose sum is σ = 242675908200. Its totient is φ = 242594187264.

The previous prime is 242635047727. The next prime is 242635047761. The reversal of 242635047731 is 137740536242.

242635047731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 242635047731 - 2² = 242635047727 is a prime.

It is a super-2 number, since 2×242635047731² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242635047761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20421326 + ... + 20433203.

It is an arithmetic number, because the mean of its divisors is an integer number (60668977050).

Almost surely, 2^242635047731 is an apocalyptic number.

242635047731 is a deficient number, since it is larger than the sum of its proper divisors (40860469).

242635047731 is an equidigital number, since it uses as much as digits as its factorization.

242635047731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40860468.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 242635047731 in words is "two hundred forty-two billion, six hundred thirty-five million, forty-seven thousand, seven hundred thirty-one".