19819834702 has 8 divisors (see below), whose sum is σ = 29742029136. Its totient is φ = 9905824992.

The previous prime is 19819834679. The next prime is 19819834709. The reversal of 19819834702 is 20743891891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19819834702² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19819834702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19819834709) 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, 2040123 + ... + 2049814.

It is an arithmetic number, because the mean of its divisors is an integer number (3717753642).

Almost surely, 2^19819834702 is an apocalyptic number.

19819834702 is a deficient number, since it is larger than the sum of its proper divisors (9922194434).

19819834702 is a wasteful number, since it uses less digits than its factorization.

19819834702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092362.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 19819834702 in words is "nineteen billion, eight hundred nineteen million, eight hundred thirty-four thousand, seven hundred two".