1383921665612 has 24 divisors (see below), whose sum is σ = 2440852189776. Its totient is φ = 686556315648.

The previous prime is 1383921665611. The next prime is 1383921665627. The reversal of 1383921665612 is 2165661293831.

It is not an unprimeable number, because it can be changed into a prime (1383921665611) 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, 2359733 + ... + 2887244.

It is an arithmetic number, because the mean of its divisors is an integer number (101702174574).

Almost surely, 2^{1383921665612} is an apocalyptic number.

It is an amenable number.

1383921665612 is a deficient number, since it is larger than the sum of its proper divisors (1056930524164).

1383921665612 is a wasteful number, since it uses less digits than its factorization.

1383921665612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247497 (or 5247495 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 53.

The spelling of 1383921665612 in words is "one trillion, three hundred eighty-three billion, nine hundred twenty-one million, six hundred sixty-five thousand, six hundred twelve".