242975039999 has 4 divisors (see below), whose sum is σ = 243197342136. Its totient is φ = 242752737864.

The previous prime is 242975039977. The next prime is 242975040023. The reversal of 242975039999 is 999930579242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242975039999 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 (242975039939) 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, 111149429 + ... + 111151614.

It is an arithmetic number, because the mean of its divisors is an integer number (60799335534).

Almost surely, 2^242975039999 is an apocalyptic number.

242975039999 is a deficient number, since it is larger than the sum of its proper divisors (222302137).

242975039999 is a wasteful number, since it uses less digits than its factorization.

242975039999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222302136.

The product of its (nonzero) digits is 99202320, while the sum is 68.

The spelling of 242975039999 in words is "two hundred forty-two billion, nine hundred seventy-five million, thirty-nine thousand, nine hundred ninety-nine".