242501361845 has 4 divisors (see below), whose sum is σ = 291001634220. Its totient is φ = 194001089472.

The previous prime is 242501361757. The next prime is 242501361871. The reversal of 242501361845 is 548163105242.

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 71203051921 + 171298309924 = 266839^2 + 413882^2 .

It is a cyclic number.

It is not a de Polignac number, because 242501361845 - 2¹⁶ = 242501296309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24250136180 + ... + 24250136189.

It is an arithmetic number, because the mean of its divisors is an integer number (72750408555).

Almost surely, 2^242501361845 is an apocalyptic number.

It is an amenable number.

242501361845 is a deficient number, since it is larger than the sum of its proper divisors (48500272375).

242501361845 is an equidigital number, since it uses as much as digits as its factorization.

242501361845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48500272374.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 242501361845 in words is "two hundred forty-two billion, five hundred one million, three hundred sixty-one thousand, eight hundred forty-five".