2724364025821 has 2 divisors, whose sum is σ = 2724364025822. Its totient is φ = 2724364025820.

The previous prime is 2724364025729. The next prime is 2724364025869. The reversal of 2724364025821 is 1285204634272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2642802948900 + 81561076921 = 1625670^2 + 285589^2 .

It is a cyclic number.

It is not a de Polignac number, because 2724364025821 - 2³⁷ = 2586925072349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2724364025021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1362182012910 + 1362182012911.

It is an arithmetic number, because the mean of its divisors is an integer number (1362182012911).

Almost surely, 2^{2724364025821} is an apocalyptic number.

It is an amenable number.

2724364025821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2724364025821 is an equidigital number, since it uses as much as digits as its factorization.

2724364025821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 2724364025821 in words is "two trillion, seven hundred twenty-four billion, three hundred sixty-four million, twenty-five thousand, eight hundred twenty-one".