138045404423 has 2 divisors, whose sum is σ = 138045404424. Its totient is φ = 138045404422.

The previous prime is 138045404417. The next prime is 138045404429. The reversal of 138045404423 is 324404540831.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (138045404417) and next prime (138045404429).

It is a cyclic number.

It is not a de Polignac number, because 138045404423 - 2⁴ = 138045404407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138045404429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69022702211 + 69022702212.

It is an arithmetic number, because the mean of its divisors is an integer number (69022702212).

Almost surely, 2^138045404423 is an apocalyptic number.

138045404423 is a deficient number, since it is larger than the sum of its proper divisors (1).

138045404423 is an equidigital number, since it uses as much as digits as its factorization.

138045404423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 138045404423 in words is "one hundred thirty-eight billion, forty-five million, four hundred four thousand, four hundred twenty-three".