2421942029543 has 2 divisors, whose sum is σ = 2421942029544. Its totient is φ = 2421942029542.

The previous prime is 2421942029491. The next prime is 2421942029557. The reversal of 2421942029543 is 3459202491242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421942029543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421942029593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210971014771 + 1210971014772.

It is an arithmetic number, because the mean of its divisors is an integer number (1210971014772).

Almost surely, 2^{2421942029543} is an apocalyptic number.

2421942029543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421942029543 is an equidigital number, since it uses as much as digits as its factorization.

2421942029543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 2421942029543 in words is "two trillion, four hundred twenty-one billion, nine hundred forty-two million, twenty-nine thousand, five hundred forty-three".