242206629887 has 2 divisors, whose sum is σ = 242206629888. Its totient is φ = 242206629886.

The previous prime is 242206629881. The next prime is 242206629911. The reversal of 242206629887 is 788926602242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242206629887 - 2³⁰ = 241132888063 is a prime.

It is a super-2 number, since 2×242206629887² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242206629881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121103314943 + 121103314944.

It is an arithmetic number, because the mean of its divisors is an integer number (121103314944).

Almost surely, 2^242206629887 is an apocalyptic number.

242206629887 is a deficient number, since it is larger than the sum of its proper divisors (1).

242206629887 is an equidigital number, since it uses as much as digits as its factorization.

242206629887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 242206629887 in words is "two hundred forty-two billion, two hundred six million, six hundred twenty-nine thousand, eight hundred eighty-seven".