19440097814 has 32 divisors (see below), whose sum is σ = 29998214400. Its totient is φ = 9443280672.

The previous prime is 19440097801. The next prime is 19440097819. The reversal of 19440097814 is 41879004491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19440097819) 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, 23620607 + ... + 23621429.

It is an arithmetic number, because the mean of its divisors is an integer number (937444200).

Almost surely, 2^19440097814 is an apocalyptic number.

19440097814 is a deficient number, since it is larger than the sum of its proper divisors (10558116586).

19440097814 is a wasteful number, since it uses less digits than its factorization.

19440097814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 19440097814 in words is "nineteen billion, four hundred forty million, ninety-seven thousand, eight hundred fourteen".