1388404488139 has 2 divisors, whose sum is σ = 1388404488140. Its totient is φ = 1388404488138.

The previous prime is 1388404488109. The next prime is 1388404488197. The reversal of 1388404488139 is 9318844048831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1388404488139 - 2¹⁵ = 1388404455371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388404488109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694202244069 + 694202244070.

It is an arithmetic number, because the mean of its divisors is an integer number (694202244070).

Almost surely, 2^{1388404488139} is an apocalyptic number.

1388404488139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388404488139 is an equidigital number, since it uses as much as digits as its factorization.

1388404488139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21233664, while the sum is 61.

The spelling of 1388404488139 in words is "one trillion, three hundred eighty-eight billion, four hundred four million, four hundred eighty-eight thousand, one hundred thirty-nine".