19444429874 has 16 divisors (see below), whose sum is σ = 30704486400. Its totient is φ = 9209692944.

The previous prime is 19444429871. The next prime is 19444429883. The reversal of 19444429874 is 47892444491.

It is not an unprimeable number, because it can be changed into a prime (19444429871) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 709967 + ... + 736845.

It is an arithmetic number, because the mean of its divisors is an integer number (1919030400).

Almost surely, 2^19444429874 is an apocalyptic number.

19444429874 is a deficient number, since it is larger than the sum of its proper divisors (11260056526).

19444429874 is a wasteful number, since it uses less digits than its factorization.

19444429874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45937.

The product of its digits is 9289728, while the sum is 56.

The spelling of 19444429874 in words is "nineteen billion, four hundred forty-four million, four hundred twenty-nine thousand, eight hundred seventy-four".