19142799648 has 48 divisors (see below), whose sum is σ = 57428400960. Its totient is φ = 5469371136.

The previous prime is 19142799617. The next prime is 19142799671. The reversal of 19142799648 is 84699724191.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19142799591 and 19142799600.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14242483 + ... + 14243826.

It is an arithmetic number, because the mean of its divisors is an integer number (1196425020).

Almost surely, 2^19142799648 is an apocalyptic number.

It is an amenable number.

19142799648 is an abundant number, since it is smaller than the sum of its proper divisors (38285601312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19142799648 is a wasteful number, since it uses less digits than its factorization.

19142799648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28486329 (or 28486321 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The spelling of 19142799648 in words is "nineteen billion, one hundred forty-two million, seven hundred ninety-nine thousand, six hundred forty-eight".