1980836686084 has 9 divisors (see below), whose sum is σ = 3466469126631. Its totient is φ = 990416935620.

The previous prime is 1980836686079. The next prime is 1980836686091. The reversal of 1980836686084 is 4806866380891.

The square root of 1980836686084 is 1407422.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2462989 + ... + 3166699.

Almost surely, 2^{1980836686084} is an apocalyptic number.

1980836686084 is the 1407422-nd square number.

It is an amenable number.

1980836686084 is a deficient number, since it is larger than the sum of its proper divisors (1485632440547).

1980836686084 is an frugal number, since it uses more digits than its factorization.

1980836686084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407426 (or 703713 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 67.

The spelling of 1980836686084 in words is "one trillion, nine hundred eighty billion, eight hundred thirty-six million, six hundred eighty-six thousand, eighty-four".