2421542325481 has 2 divisors, whose sum is σ = 2421542325482. Its totient is φ = 2421542325480.

The previous prime is 2421542325409. The next prime is 2421542325563. The reversal of 2421542325481 is 1845232451242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1654413337600 + 767128987881 = 1286240^2 + 875859^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421542325481 - 2¹⁹ = 2421541801193 is a prime.

It is a super-2 number, since 2×2421542325481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2421542322481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210771162740 + 1210771162741.

It is an arithmetic number, because the mean of its divisors is an integer number (1210771162741).

Almost surely, 2^{2421542325481} is an apocalyptic number.

It is an amenable number.

2421542325481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421542325481 is an equidigital number, since it uses as much as digits as its factorization.

2421542325481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 614400, while the sum is 43.

The spelling of 2421542325481 in words is "two trillion, four hundred twenty-one billion, five hundred forty-two million, three hundred twenty-five thousand, four hundred eighty-one".