19718901791314 has 8 divisors (see below), whose sum is σ = 32267293840368. Its totient is φ = 8963137177860.

The previous prime is 19718901791213. The next prime is 19718901791327. The reversal of 19718901791314 is 41319710981791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448156858872 + ... + 448156858915.

It is an arithmetic number, because the mean of its divisors is an integer number (4033411730046).

Almost surely, 2^{19718901791314} is an apocalyptic number.

19718901791314 is a deficient number, since it is larger than the sum of its proper divisors (12548392049054).

19718901791314 is a wasteful number, since it uses less digits than its factorization.

19718901791314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896313717800.

The product of its (nonzero) digits is 3429216, while the sum is 61.

The spelling of 19718901791314 in words is "nineteen trillion, seven hundred eighteen billion, nine hundred one million, seven hundred ninety-one thousand, three hundred fourteen".