13819430194 has 8 divisors (see below), whose sum is σ = 20815159068. Its totient is φ = 6881043840.

The previous prime is 13819430173. The next prime is 13819430213. The reversal of 13819430194 is 49103491831.

It can be written as a sum of positive squares in 2 ways, for example, as 11542708969 + 2276721225 = 107437^2 + 47715^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13819430194.

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 3 ways as a sum of consecutive naturals, for example, 14335027 + ... + 14335990.

Almost surely, 2^13819430194 is an apocalyptic number.

13819430194 is a deficient number, since it is larger than the sum of its proper divisors (6995728874).

13819430194 is a wasteful number, since it uses less digits than its factorization.

13819430194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28671260.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 13819430194 in words is "thirteen billion, eight hundred nineteen million, four hundred thirty thousand, one hundred ninety-four".