1388350594849 has 2 divisors, whose sum is σ = 1388350594850. Its totient is φ = 1388350594848.

The previous prime is 1388350594819. The next prime is 1388350594913. The reversal of 1388350594849 is 9484950538831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1376116686400 + 12233908449 = 1173080^2 + 110607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1388350594849 - 2²³ = 1388342206241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388350594819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694175297424 + 694175297425.

It is an arithmetic number, because the mean of its divisors is an integer number (694175297425).

Almost surely, 2^{1388350594849} is an apocalyptic number.

It is an amenable number.

1388350594849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388350594849 is an equidigital number, since it uses as much as digits as its factorization.

1388350594849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 149299200, while the sum is 67.

The spelling of 1388350594849 in words is "one trillion, three hundred eighty-eight billion, three hundred fifty million, five hundred ninety-four thousand, eight hundred forty-nine".