13942539420841 has 2 divisors, whose sum is σ = 13942539420842. Its totient is φ = 13942539420840.

The previous prime is 13942539420833. The next prime is 13942539420847. The reversal of 13942539420841 is 14802493524931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8934808483225 + 5007730937616 = 2989115^2 + 2237796^2 .

It is a cyclic number.

It is not a de Polignac number, because 13942539420841 - 2³ = 13942539420833 is a prime.

It is not a weakly prime, because it can be changed into another prime (13942539420847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971269710420 + 6971269710421.

It is an arithmetic number, because the mean of its divisors is an integer number (6971269710421).

Almost surely, 2^{13942539420841} is an apocalyptic number.

It is an amenable number.

13942539420841 is a deficient number, since it is larger than the sum of its proper divisors (1).

13942539420841 is an equidigital number, since it uses as much as digits as its factorization.

13942539420841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 13942539420841 in words is "thirteen trillion, nine hundred forty-two billion, five hundred thirty-nine million, four hundred twenty thousand, eight hundred forty-one".