242440554333673 has 2 divisors, whose sum is σ = 242440554333674. Its totient is φ = 242440554333672.

The previous prime is 242440554333647. The next prime is 242440554333727. The reversal of 242440554333673 is 376333455044242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242204385548889 + 236168784784 = 15562917^2 + 485972^2 .

It is a cyclic number.

It is not a de Polignac number, because 242440554333673 - 2²¹ = 242440552236521 is a prime.

It is a super-2 number, since 2×242440554333673² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242440554333613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121220277166836 + 121220277166837.

It is an arithmetic number, because the mean of its divisors is an integer number (121220277166837).

Almost surely, 2^{242440554333673} is an apocalyptic number.

It is an amenable number.

242440554333673 is a deficient number, since it is larger than the sum of its proper divisors (1).

242440554333673 is an equidigital number, since it uses as much as digits as its factorization.

242440554333673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87091200, while the sum is 55.

The spelling of 242440554333673 in words is "two hundred forty-two trillion, four hundred forty billion, five hundred fifty-four million, three hundred thirty-three thousand, six hundred seventy-three".