242505351808 has 32 divisors (see below), whose sum is σ = 483856138260. Its totient is φ = 121066948608.

The previous prime is 242505351731. The next prime is 242505351817. The reversal of 242505351808 is 808153505242.

It can be written as a sum of positive squares in 2 ways, for example, as 187932654144 + 54572697664 = 433512^2 + 233608^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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, 1367085 + ... + 1534252.

Almost surely, 2^242505351808 is an apocalyptic number.

It is an amenable number.

242505351808 is a deficient number, since it is larger than the sum of its proper divisors (241350786452).

242505351808 is an equidigital number, since it uses as much as digits as its factorization.

242505351808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902004 (or 2901992 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 43.

The spelling of 242505351808 in words is "two hundred forty-two billion, five hundred five million, three hundred fifty-one thousand, eight hundred eight".