19440546914 has 4 divisors (see below), whose sum is σ = 29160820374. Its totient is φ = 9720273456.

The previous prime is 19440546893. The next prime is 19440546929. The reversal of 19440546914 is 41964504491.

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., 15833943889 + 3606603025 = 125833^2 + 60055^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4860136727 + ... + 4860136730.

Almost surely, 2^19440546914 is an apocalyptic number.

19440546914 is a deficient number, since it is larger than the sum of its proper divisors (9720273460).

19440546914 is an equidigital number, since it uses as much as digits as its factorization.

19440546914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9720273459.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 19440546914 in words is "nineteen billion, four hundred forty million, five hundred forty-six thousand, nine hundred fourteen".