19886729160 has 64 divisors (see below), whose sum is σ = 59726004480. Its totient is φ = 5297277440.

The previous prime is 19886729153. The next prime is 19886729189. The reversal of 19886729160 is 6192768891.

It is a self number, because there is not a number n which added to its sum of digits gives 19886729160.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18364 + ... + 200276.

It is an arithmetic number, because the mean of its divisors is an integer number (933218820).

Almost surely, 2^19886729160 is an apocalyptic number.

19886729160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19886729160 is an abundant number, since it is smaller than the sum of its proper divisors (39839275320).

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

19886729160 is a wasteful number, since it uses less digits than its factorization.

19886729160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182838 (or 182834 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 57.

The spelling of 19886729160 in words is "nineteen billion, eight hundred eighty-six million, seven hundred twenty-nine thousand, one hundred sixty".