1388757328049 has 8 divisors (see below), whose sum is σ = 1709239788480. Its totient is φ = 1098797006736.

The previous prime is 1388757328037. The next prime is 1388757328093. The reversal of 1388757328049 is 9408237578831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1388757328049 - 2²⁴ = 1388740550833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1388757328019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7630534679 + ... + 7630534860.

It is an arithmetic number, because the mean of its divisors is an integer number (213654973560).

Almost surely, 2^{1388757328049} is an apocalyptic number.

It is an amenable number.

1388757328049 is a deficient number, since it is larger than the sum of its proper divisors (320482460431).

1388757328049 is a wasteful number, since it uses less digits than its factorization.

1388757328049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261069559.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 1388757328049 in words is "one trillion, three hundred eighty-eight billion, seven hundred fifty-seven million, three hundred twenty-eight thousand, forty-nine".