138370013827 has 2 divisors, whose sum is σ = 138370013828. Its totient is φ = 138370013826.

The previous prime is 138370013813. The next prime is 138370013849. The reversal of 138370013827 is 728310073831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138370013827 - 2¹⁹ = 138369489539 is a prime.

It is not a weakly prime, because it can be changed into another prime (138370013807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69185006913 + 69185006914.

It is an arithmetic number, because the mean of its divisors is an integer number (69185006914).

Almost surely, 2^138370013827 is an apocalyptic number.

138370013827 is a deficient number, since it is larger than the sum of its proper divisors (1).

138370013827 is an equidigital number, since it uses as much as digits as its factorization.

138370013827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 138370013827 in words is "one hundred thirty-eight billion, three hundred seventy million, thirteen thousand, eight hundred twenty-seven".