138219730760863 has 2 divisors, whose sum is σ = 138219730760864. Its totient is φ = 138219730760862.

The previous prime is 138219730760821. The next prime is 138219730760941. The reversal of 138219730760863 is 368067037912831.

It is a weak prime.

It is an emirp because it is prime and its reverse (368067037912831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138219730760863 - 2⁹ = 138219730760351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138219730760795 and 138219730760804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138219730767863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69109865380431 + 69109865380432.

It is an arithmetic number, because the mean of its divisors is an integer number (69109865380432).

Almost surely, 2^{138219730760863} is an apocalyptic number.

138219730760863 is a deficient number, since it is larger than the sum of its proper divisors (1).

138219730760863 is an equidigital number, since it uses as much as digits as its factorization.

138219730760863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 138219730760863 in words is "one hundred thirty-eight trillion, two hundred nineteen billion, seven hundred thirty million, seven hundred sixty thousand, eight hundred sixty-three".