5494840254721 has 2 divisors, whose sum is σ = 5494840254722. Its totient is φ = 5494840254720.

The previous prime is 5494840254677. The next prime is 5494840254731. The reversal of 5494840254721 is 1274520484945.

5494840254721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3024486201025 + 2470354053696 = 1739105^2 + 1571736^2 .

It is a cyclic number.

It is not a de Polignac number, because 5494840254721 - 2²¹ = 5494838157569 is a prime.

It is not a weakly prime, because it can be changed into another prime (5494840254731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2747420127360 + 2747420127361.

It is an arithmetic number, because the mean of its divisors is an integer number (2747420127361).

Almost surely, 2^{5494840254721} is an apocalyptic number.

It is an amenable number.

5494840254721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5494840254721 is an equidigital number, since it uses as much as digits as its factorization.

5494840254721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 5494840254721 in words is "five trillion, four hundred ninety-four billion, eight hundred forty million, two hundred fifty-four thousand, seven hundred twenty-one".