19678305134752 has 24 divisors (see below), whose sum is σ = 42263632619712. Its totient is φ = 8944684152000.

The previous prime is 19678305134717. The next prime is 19678305134791. The reversal of 19678305134752 is 25743150387691.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27952137624 + ... + 27952138327.

It is an arithmetic number, because the mean of its divisors is an integer number (1760984692488).

It is a 1-persistent number, because it is pandigital, but 2⋅19678305134752 = 39356610269504 is not.

Almost surely, 2^{19678305134752} is an apocalyptic number.

It is an amenable number.

19678305134752 is an abundant number, since it is smaller than the sum of its proper divisors (22585327484960).

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

19678305134752 is a wasteful number, since it uses less digits than its factorization.

19678305134752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55904275972 (or 55904275964 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 19678305134752 in words is "nineteen trillion, six hundred seventy-eight billion, three hundred five million, one hundred thirty-four thousand, seven hundred fifty-two".