19340640000 has 1080 divisors, whose sum is σ = 80680236560. Its totient is φ = 4561920000.

The previous prime is 19340639959. The next prime is 19340640017. The reversal of 19340640000 is 4604391.

19340640000 is a `hidden beast` number, since 19 + 3 + 4 + 0 + 640 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1080).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 119 ways as a sum of consecutive naturals, for example, 522719982 + ... + 522720018.

Almost surely, 2^19340640000 is an apocalyptic number.

19340640000 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 19340640000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40340118280).

19340640000 is an abundant number, since it is smaller than the sum of its proper divisors (61339596560).

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

19340640000 is an equidigital number, since it uses as much as digits as its factorization.

19340640000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 19340640000 in words is "nineteen billion, three hundred forty million, six hundred forty thousand".