19339440321914 has 4 divisors (see below), whose sum is σ = 29009160482874. Its totient is φ = 9669720160956.

The previous prime is 19339440321899. The next prime is 19339440321961. The reversal of 19339440321914 is 41912304493391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14856129553225 + 4483310768689 = 3854365^2 + 2117383^2 .

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 4834860080477 + ... + 4834860080480.

Almost surely, 2^{19339440321914} is an apocalyptic number.

19339440321914 is a deficient number, since it is larger than the sum of its proper divisors (9669720160960).

19339440321914 is an equidigital number, since it uses as much as digits as its factorization.

19339440321914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9669720160959.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 19339440321914 in words is "nineteen trillion, three hundred thirty-nine billion, four hundred forty million, three hundred twenty-one thousand, nine hundred fourteen".