138063448619 has 2 divisors, whose sum is σ = 138063448620. Its totient is φ = 138063448618.

The previous prime is 138063448597. The next prime is 138063448639. The reversal of 138063448619 is 916844360831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138063448619 - 2⁸ = 138063448363 is a prime.

It is a super-2 number, since 2×138063448619² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (138063448639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69031724309 + 69031724310.

It is an arithmetic number, because the mean of its divisors is an integer number (69031724310).

Almost surely, 2^138063448619 is an apocalyptic number.

138063448619 is a deficient number, since it is larger than the sum of its proper divisors (1).

138063448619 is an equidigital number, since it uses as much as digits as its factorization.

138063448619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 138063448619 in words is "one hundred thirty-eight billion, sixty-three million, four hundred forty-eight thousand, six hundred nineteen".