19748142829 has 4 divisors (see below), whose sum is σ = 19748462976. Its totient is φ = 19747822684.

The previous prime is 19748142787. The next prime is 19748142863. The reversal of 19748142829 is 92824184791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19748142829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19748142829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19748142889) 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, 34939 + ... + 201784.

It is an arithmetic number, because the mean of its divisors is an integer number (4937115744).

Almost surely, 2^19748142829 is an apocalyptic number.

It is an amenable number.

19748142829 is a deficient number, since it is larger than the sum of its proper divisors (320147).

19748142829 is an equidigital number, since it uses as much as digits as its factorization.

19748142829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320146.

The product of its digits is 2322432, while the sum is 55.

The spelling of 19748142829 in words is "nineteen billion, seven hundred forty-eight million, one hundred forty-two thousand, eight hundred twenty-nine".