19426944248 has 16 divisors (see below), whose sum is σ = 36498525000. Its totient is φ = 9694004256.

The previous prime is 19426944247. The next prime is 19426944253. The reversal of 19426944248 is 84244962491.

It is a self number, because there is not a number n which added to its sum of digits gives 19426944248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19426944247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2429243 + ... + 2437226.

Almost surely, 2^19426944248 is an apocalyptic number.

It is an amenable number.

19426944248 is a deficient number, since it is larger than the sum of its proper divisors (17071580752).

19426944248 is a wasteful number, since it uses less digits than its factorization.

19426944248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866974 (or 4866970 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The spelling of 19426944248 in words is "nineteen billion, four hundred twenty-six million, nine hundred forty-four thousand, two hundred forty-eight".