1383781648976 has 80 divisors (see below), whose sum is σ = 2989296797760. Its totient is φ = 616691128320.

The previous prime is 1383781648967. The next prime is 1383781648981. The reversal of 1383781648976 is 6798461873831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14407031 + ... + 14502761.

It is an arithmetic number, because the mean of its divisors is an integer number (37366209972).

Almost surely, 2^{1383781648976} is an apocalyptic number.

1383781648976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383781648976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494648398880).

1383781648976 is an abundant number, since it is smaller than the sum of its proper divisors (1605515148784).

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

1383781648976 is a wasteful number, since it uses less digits than its factorization.

1383781648976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98572 (or 98566 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 71.

The spelling of 1383781648976 in words is "one trillion, three hundred eighty-three billion, seven hundred eighty-one million, six hundred forty-eight thousand, nine hundred seventy-six".