242023542215639 has 2 divisors, whose sum is σ = 242023542215640. Its totient is φ = 242023542215638.

The previous prime is 242023542215597. The next prime is 242023542215683. The reversal of 242023542215639 is 936512245320242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242023542215639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242023542215839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121011771107819 + 121011771107820.

It is an arithmetic number, because the mean of its divisors is an integer number (121011771107820).

Almost surely, 2^{242023542215639} is an apocalyptic number.

242023542215639 is a deficient number, since it is larger than the sum of its proper divisors (1).

242023542215639 is an equidigital number, since it uses as much as digits as its factorization.

242023542215639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 242023542215639 in words is "two hundred forty-two trillion, twenty-three billion, five hundred forty-two million, two hundred fifteen thousand, six hundred thirty-nine".