242545026330621 has 24 divisors (see below), whose sum is σ = 400402330907904. Its totient is φ = 138593508953760.

The previous prime is 242545026330611. The next prime is 242545026330667. The reversal of 242545026330621 is 126033620545242.

242545026330621 is a `hidden beast` number, since 2 + 4 + 2 + 5 + 4 + 5 + 0 + 2 + 633 + 0 + 6 + 2 + 1 = 666.

It is not a de Polignac number, because 242545026330621 - 2⁹ = 242545026330109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242545026330601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48267045 + ... + 53054666.

It is an arithmetic number, because the mean of its divisors is an integer number (16683430454496).

Almost surely, 2^{242545026330621} is an apocalyptic number.

242545026330621 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242545026330621 is a deficient number, since it is larger than the sum of its proper divisors (157857304577283).

242545026330621 is a wasteful number, since it uses less digits than its factorization.

242545026330621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101359721 (or 101359718 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

Adding to 242545026330621 its reverse (126033620545242), we get a palindrome (368578646875863).

The spelling of 242545026330621 in words is "two hundred forty-two trillion, five hundred forty-five billion, twenty-six million, three hundred thirty thousand, six hundred twenty-one".