1388328283386 has 72 divisors (see below), whose sum is σ = 3362403451680. Its totient is φ = 413574899760.

The previous prime is 1388328283361. The next prime is 1388328283403. The reversal of 1388328283386 is 6833828238831.

1388328283386 is a `hidden beast` number, since 13 + 8 + 8 + 3 + 282 + 8 + 338 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5273470 + ... + 5530473.

It is an arithmetic number, because the mean of its divisors is an integer number (46700047940).

Almost surely, 2^{1388328283386} is an apocalyptic number.

1388328283386 is an abundant number, since it is smaller than the sum of its proper divisors (1974075168294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1388328283386 is a wasteful number, since it uses less digits than its factorization.

1388328283386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10804032 (or 10804018 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 63.

The spelling of 1388328283386 in words is "one trillion, three hundred eighty-eight billion, three hundred twenty-eight million, two hundred eighty-three thousand, three hundred eighty-six".