19984151708 has 12 divisors (see below), whose sum is σ = 35033732160. Its totient is φ = 9974513952.

The previous prime is 19984151641. The next prime is 19984151731. The reversal of 19984151708 is 80715148991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19984151708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4387916 + ... + 4392467.

It is an arithmetic number, because the mean of its divisors is an integer number (2919477680).

Almost surely, 2^19984151708 is an apocalyptic number.

It is an amenable number.

19984151708 is a deficient number, since it is larger than the sum of its proper divisors (15049580452).

19984151708 is a wasteful number, since it uses less digits than its factorization.

19984151708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8780956 (or 8780954 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 53.

The spelling of 19984151708 in words is "nineteen billion, nine hundred eighty-four million, one hundred fifty-one thousand, seven hundred eight".