1980932391936 has 363 divisors, whose sum is σ = 5972860113933. Its totient is φ = 656662671360.

The previous prime is 1980932391917. The next prime is 1980932391941. The reversal of 1980932391936 is 6391932390891.

The square root of 1980932391936 is 1407456.

It is a perfect power (a square), and thus also a powerful number.

1980932391936 is a `hidden beast` number, since 198 + 0 + 9 + 323 + 91 + 9 + 36 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21828289536 + 1959104102400 = 147744^2 + 1399680^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 10944377766 + ... + 10944377946.

Almost surely, 2^{1980932391936} is an apocalyptic number.

1980932391936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1980932391936 is the 1407456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1980932391936

1980932391936 is an abundant number, since it is smaller than the sum of its proper divisors (3991927721997).

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

1980932391936 is an frugal number, since it uses more digits than its factorization.

1980932391936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 17006112, while the sum is 63.

The spelling of 1980932391936 in words is "one trillion, nine hundred eighty billion, nine hundred thirty-two million, three hundred ninety-one thousand, nine hundred thirty-six".