1388258081801 has 2 divisors, whose sum is σ = 1388258081802. Its totient is φ = 1388258081800.

The previous prime is 1388258081753. The next prime is 1388258081813. The reversal of 1388258081801 is 1081808528831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722459200576 + 665798881225 = 849976^2 + 815965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1388258081801 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388258081101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694129040900 + 694129040901.

It is an arithmetic number, because the mean of its divisors is an integer number (694129040901).

Almost surely, 2^{1388258081801} is an apocalyptic number.

It is an amenable number.

1388258081801 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388258081801 is an equidigital number, since it uses as much as digits as its factorization.

1388258081801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 983040, while the sum is 53.

The spelling of 1388258081801 in words is "one trillion, three hundred eighty-eight billion, two hundred fifty-eight million, eighty-one thousand, eight hundred one".