138585456311 has 2 divisors, whose sum is σ = 138585456312. Its totient is φ = 138585456310.

The previous prime is 138585456253. The next prime is 138585456313. The reversal of 138585456311 is 113654585831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138585456311 - 2²⁶ = 138518347447 is a prime.

Together with 138585456313, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138585456311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138585456313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69292728155 + 69292728156.

It is an arithmetic number, because the mean of its divisors is an integer number (69292728156).

Almost surely, 2^138585456311 is an apocalyptic number.

138585456311 is a deficient number, since it is larger than the sum of its proper divisors (1).

138585456311 is an equidigital number, since it uses as much as digits as its factorization.

138585456311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728000, while the sum is 50.

The spelling of 138585456311 in words is "one hundred thirty-eight billion, five hundred eighty-five million, four hundred fifty-six thousand, three hundred eleven".