54093800729681 has 2 divisors, whose sum is σ = 54093800729682. Its totient is φ = 54093800729680.

The previous prime is 54093800729593. The next prime is 54093800729741. The reversal of 54093800729681 is 18692700839045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41902641900625 + 12191158829056 = 6473225^2 + 3491584^2 .

It is a cyclic number.

It is not a de Polignac number, because 54093800729681 - 2²² = 54093796535377 is a prime.

It is a super-2 number, since 2×54093800729681² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54093800719681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27046900364840 + 27046900364841.

It is an arithmetic number, because the mean of its divisors is an integer number (27046900364841).

It is a 2-persistent number, because it is pandigital, and so is 2⋅54093800729681 = 108187601459362, but 3⋅54093800729681 = 162281402189043 is not.

Almost surely, 2^{54093800729681} is an apocalyptic number.

It is an amenable number.

54093800729681 is a deficient number, since it is larger than the sum of its proper divisors (1).

54093800729681 is an equidigital number, since it uses as much as digits as its factorization.

54093800729681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 54093800729681 in words is "fifty-four trillion, ninety-three billion, eight hundred million, seven hundred twenty-nine thousand, six hundred eighty-one".