1383784509688 has 32 divisors (see below), whose sum is σ = 2965702118400. Its totient is φ = 592960584672.

The previous prime is 1383784509661. The next prime is 1383784509689. The reversal of 1383784509688 is 8869054873831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383784509689) 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, 1500028 + ... + 2240011.

It is an arithmetic number, because the mean of its divisors is an integer number (92678191200).

Almost surely, 2^{1383784509688} is an apocalyptic number.

It is an amenable number.

1383784509688 is an abundant number, since it is smaller than the sum of its proper divisors (1581917608712).

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

1383784509688 is a wasteful number, since it uses less digits than its factorization.

1383784509688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746659 (or 3746655 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 70.

The spelling of 1383784509688 in words is "one trillion, three hundred eighty-three billion, seven hundred eighty-four million, five hundred nine thousand, six hundred eighty-eight".