19802029703 has 4 divisors (see below), whose sum is σ = 19804039608. Its totient is φ = 19800019800.

The previous prime is 19802029679. The next prime is 19802029739. The reversal of 19802029703 is 30792020891.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 19802029703 - 2²⁰ = 19800981127 is a prime.

It is a Duffinian number.

19802029703 is a modest number, since divided by 29703 gives 19802 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19802029763) 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, 990101 + ... + 1009902.

It is an arithmetic number, because the mean of its divisors is an integer number (4951009902).

Almost surely, 2^19802029703 is an apocalyptic number.

19802029703 is a deficient number, since it is larger than the sum of its proper divisors (2009905).

19802029703 is an equidigital number, since it uses as much as digits as its factorization.

19802029703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009904.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 19802029703 in words is "nineteen billion, eight hundred two million, twenty-nine thousand, seven hundred three".