19648780940832 has 96 divisors (see below), whose sum is σ = 53090033472000. Its totient is φ = 6358384263168.

The previous prime is 19648780940773. The next prime is 19648780940837. The reversal of 19648780940832 is 23804908784691.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (19648780940837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4565232 + ... + 7754927.

It is an arithmetic number, because the mean of its divisors is an integer number (553021182000).

Almost surely, 2^{19648780940832} is an apocalyptic number.

19648780940832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19648780940832 is an abundant number, since it is smaller than the sum of its proper divisors (33441252531168).

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

19648780940832 is a wasteful number, since it uses less digits than its factorization.

19648780940832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320658 (or 12320650 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 69.

The spelling of 19648780940832 in words is "nineteen trillion, six hundred forty-eight billion, seven hundred eighty million, nine hundred forty thousand, eight hundred thirty-two".