15425138058917 has 2 divisors, whose sum is σ = 15425138058918. Its totient is φ = 15425138058916.

The previous prime is 15425138058901. The next prime is 15425138058919. The reversal of 15425138058917 is 71985083152451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15243956731201 + 181181327716 = 3904351^2 + 425654^2 .

It is a cyclic number.

It is not a de Polignac number, because 15425138058917 - 2⁴ = 15425138058901 is a prime.

Together with 15425138058919, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15425138058919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7712569029458 + 7712569029459.

It is an arithmetic number, because the mean of its divisors is an integer number (7712569029459).

Almost surely, 2^{15425138058917} is an apocalyptic number.

It is an amenable number.

15425138058917 is a deficient number, since it is larger than the sum of its proper divisors (1).

15425138058917 is an equidigital number, since it uses as much as digits as its factorization.

15425138058917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096000, while the sum is 59.

The spelling of 15425138058917 in words is "fifteen trillion, four hundred twenty-five billion, one hundred thirty-eight million, fifty-eight thousand, nine hundred seventeen".