138260018059951 has 2 divisors, whose sum is σ = 138260018059952. Its totient is φ = 138260018059950.

The previous prime is 138260018059909. The next prime is 138260018059963. The reversal of 138260018059951 is 159950810062831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 138260018059951 - 2⁴⁵ = 103075645971119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138260012059951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69130009029975 + 69130009029976.

It is an arithmetic number, because the mean of its divisors is an integer number (69130009029976).

Almost surely, 2^{138260018059951} is an apocalyptic number.

138260018059951 is a deficient number, since it is larger than the sum of its proper divisors (1).

138260018059951 is an equidigital number, since it uses as much as digits as its factorization.

138260018059951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 58.

The spelling of 138260018059951 in words is "one hundred thirty-eight trillion, two hundred sixty billion, eighteen million, fifty-nine thousand, nine hundred fifty-one".