19872825216 has 64 divisors (see below), whose sum is σ = 52801870800. Its totient is φ = 6622433280.

The previous prime is 19872825209. The next prime is 19872825221. The reversal of 19872825216 is 61252827891.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2710836 + ... + 2718156.

Almost surely, 2^19872825216 is an apocalyptic number.

19872825216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19872825216 is an abundant number, since it is smaller than the sum of its proper divisors (32929045584).

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

19872825216 is an equidigital number, since it uses as much as digits as its factorization.

19872825216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14407 (or 14395 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The spelling of 19872825216 in words is "nineteen billion, eight hundred seventy-two million, eight hundred twenty-five thousand, two hundred sixteen".