19980836588 has 12 divisors (see below), whose sum is σ = 35132183352. Its totient is φ = 9943069920.

The previous prime is 19980836581. The next prime is 19980836591. The reversal of 19980836588 is 88563808991.

It is not an unprimeable number, because it can be changed into a prime (19980836581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11836145 + ... + 11837832.

It is an arithmetic number, because the mean of its divisors is an integer number (2927681946).

Almost surely, 2^19980836588 is an apocalyptic number.

It is an amenable number.

19980836588 is a deficient number, since it is larger than the sum of its proper divisors (15151346764).

19980836588 is a wasteful number, since it uses less digits than its factorization.

19980836588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23674192 (or 23674190 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 65.

The spelling of 19980836588 in words is "nineteen billion, nine hundred eighty million, eight hundred thirty-six thousand, five hundred eighty-eight".