242395987837 has 4 divisors (see below), whose sum is σ = 242541398016. Its totient is φ = 242250577660.

The previous prime is 242395987819. The next prime is 242395987961. The reversal of 242395987837 is 738789593242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242395987837 - 2¹¹ = 242395985789 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 (242395987037) 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, 72702589 + ... + 72705922.

It is an arithmetic number, because the mean of its divisors is an integer number (60635349504).

Almost surely, 2^242395987837 is an apocalyptic number.

It is an amenable number.

242395987837 is a deficient number, since it is larger than the sum of its proper divisors (145410179).

242395987837 is a wasteful number, since it uses less digits than its factorization.

242395987837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145410178.

The product of its digits is 182891520, while the sum is 67.

The spelling of 242395987837 in words is "two hundred forty-two billion, three hundred ninety-five million, nine hundred eighty-seven thousand, eight hundred thirty-seven".