19980675796 has 24 divisors (see below), whose sum is σ = 35834760360. Its totient is φ = 9742387200.

The previous prime is 19980675769. The next prime is 19980675829. The reversal of 19980675796 is 69757608991.

It can be written as a sum of positive squares in 4 ways, for example, as 5026810000 + 14953865796 = 70900^2 + 122286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364900 + ... + 416068.

It is an arithmetic number, because the mean of its divisors is an integer number (1493115015).

Almost surely, 2^19980675796 is an apocalyptic number.

It is an amenable number.

19980675796 is a deficient number, since it is larger than the sum of its proper divisors (15854084564).

19980675796 is a wasteful number, since it uses less digits than its factorization.

19980675796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53595 (or 53593 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 67.

The spelling of 19980675796 in words is "nineteen billion, nine hundred eighty million, six hundred seventy-five thousand, seven hundred ninety-six".