138553358519 has 2 divisors, whose sum is σ = 138553358520. Its totient is φ = 138553358518.

The previous prime is 138553358477. The next prime is 138553358521. The reversal of 138553358519 is 915853355831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138553358519 - 2⁸ = 138553358263 is a prime.

It is a super-2 number, since 2×138553358519² (a number of 23 digits) contains 22 as substring.

Together with 138553358521, 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 (138553358539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69276679259 + 69276679260.

It is an arithmetic number, because the mean of its divisors is an integer number (69276679260).

Almost surely, 2^138553358519 is an apocalyptic number.

138553358519 is a deficient number, since it is larger than the sum of its proper divisors (1).

138553358519 is an equidigital number, since it uses as much as digits as its factorization.

138553358519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720000, while the sum is 56.

The spelling of 138553358519 in words is "one hundred thirty-eight billion, five hundred fifty-three million, three hundred fifty-eight thousand, five hundred nineteen".