19749000029 has 16 divisors (see below), whose sum is σ = 22299822720. Its totient is φ = 17324784960.

The previous prime is 19748999993. The next prime is 19749000107. The reversal of 19749000029 is 92000094791.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19749000029 - 2¹² = 19748995933 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 19749000029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19749000529) 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 15 ways as a sum of consecutive naturals, for example, 582272 + ... + 615254.

It is an arithmetic number, because the mean of its divisors is an integer number (1393738920).

Almost surely, 2^19749000029 is an apocalyptic number.

It is an amenable number.

19749000029 is a deficient number, since it is larger than the sum of its proper divisors (2550822691).

19749000029 is a wasteful number, since it uses less digits than its factorization.

19749000029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34900.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 19749000029 in words is "nineteen billion, seven hundred forty-nine million, twenty-nine", and thus it is an aban number.