19988039376 has 60 divisors (see below), whose sum is σ = 56023899360. Its totient is φ = 6652537920.

The previous prime is 19988039371. The next prime is 19988039377. The reversal of 19988039376 is 67393088991.

19988039376 is a `hidden beast` number, since 19 + 98 + 80 + 393 + 76 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19988039371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10420 + ... + 200211.

It is an arithmetic number, because the mean of its divisors is an integer number (933731656).

Almost surely, 2^19988039376 is an apocalyptic number.

19988039376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19988039376 is an abundant number, since it is smaller than the sum of its proper divisors (36035859984).

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

19988039376 is a wasteful number, since it uses less digits than its factorization.

19988039376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211304 (or 211295 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 19988039376 in words is "nineteen billion, nine hundred eighty-eight million, thirty-nine thousand, three hundred seventy-six".