1388757328093 has 2 divisors, whose sum is σ = 1388757328094. Its totient is φ = 1388757328092.

The previous prime is 1388757328037. The next prime is 1388757328103. The reversal of 1388757328093 is 3908237578831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1303748345124 + 85008982969 = 1141818^2 + 291563^2 .

It is an emirp because it is prime and its reverse (3908237578831) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1388757328093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1388757328793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694378664046 + 694378664047.

It is an arithmetic number, because the mean of its divisors is an integer number (694378664047).

Almost surely, 2^{1388757328093} is an apocalyptic number.

It is an amenable number.

1388757328093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388757328093 is an equidigital number, since it uses as much as digits as its factorization.

1388757328093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 1388757328093 in words is "one trillion, three hundred eighty-eight billion, seven hundred fifty-seven million, three hundred twenty-eight thousand, ninety-three".