138848231053979 has 2 divisors, whose sum is σ = 138848231053980. Its totient is φ = 138848231053978.

The previous prime is 138848231053967. The next prime is 138848231053993. The reversal of 138848231053979 is 979350132848831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138848231053979 - 2³² = 138843936086683 is a prime.

It is not a weakly prime, because it can be changed into another prime (138848231053949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69424115526989 + 69424115526990.

It is an arithmetic number, because the mean of its divisors is an integer number (69424115526990).

Almost surely, 2^{138848231053979} is an apocalyptic number.

138848231053979 is a deficient number, since it is larger than the sum of its proper divisors (1).

138848231053979 is an equidigital number, since it uses as much as digits as its factorization.

138848231053979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 313528320, while the sum is 71.

The spelling of 138848231053979 in words is "one hundred thirty-eight trillion, eight hundred forty-eight billion, two hundred thirty-one million, fifty-three thousand, nine hundred seventy-nine".