1671783982920 has 96 divisors (see below), whose sum is σ = 5719261017600. Its totient is φ = 422345425536.

The previous prime is 1671783982871. The next prime is 1671783982991. The reversal of 1671783982920 is 292893871761.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122199592 + ... + 122213271.

It is an arithmetic number, because the mean of its divisors is an integer number (59575635600).

Almost surely, 2^{1671783982920} is an apocalyptic number.

1671783982920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1671783982920 is an abundant number, since it is smaller than the sum of its proper divisors (4047477034680).

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

1671783982920 is a wasteful number, since it uses less digits than its factorization.

1671783982920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244412899 (or 244412892 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 1671783982920 in words is "one trillion, six hundred seventy-one billion, seven hundred eighty-three million, nine hundred eighty-two thousand, nine hundred twenty".