13854429212081 has 2 divisors, whose sum is σ = 13854429212082. Its totient is φ = 13854429212080.

The previous prime is 13854429212059. The next prime is 13854429212087. The reversal of 13854429212081 is 18021292445831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10799767690000 + 3054661522081 = 3286300^2 + 1747759^2 .

It is a cyclic number.

It is not a de Polignac number, because 13854429212081 - 2¹⁰ = 13854429211057 is a prime.

It is a super-2 number, since 2×13854429212081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13854429212087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6927214606040 + 6927214606041.

It is an arithmetic number, because the mean of its divisors is an integer number (6927214606041).

Almost surely, 2^{13854429212081} is an apocalyptic number.

It is an amenable number.

13854429212081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13854429212081 is an equidigital number, since it uses as much as digits as its factorization.

13854429212081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 50.

The spelling of 13854429212081 in words is "thirteen trillion, eight hundred fifty-four billion, four hundred twenty-nine million, two hundred twelve thousand, eighty-one".