19876789240000 has 840 divisors, whose sum is σ = 64240310982672. Its totient is φ = 6027678720000.

The previous prime is 19876789239971. The next prime is 19876789240013. The reversal of 19876789240000 is 4298767891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 797707542 + ... + 797732458.

Almost surely, 2^{19876789240000} is an apocalyptic number.

19876789240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19876789240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32120155491336).

19876789240000 is an abundant number, since it is smaller than the sum of its proper divisors (44363521742672).

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

19876789240000 is a wasteful number, since it uses less digits than its factorization.

19876789240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25011 (or 24979 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 19876789240000 in words is "nineteen trillion, eight hundred seventy-six billion, seven hundred eighty-nine million, two hundred forty thousand".