20429053019 has 4 divisors (see below), whose sum is σ = 20430560160. Its totient is φ = 20427545880.

The previous prime is 20429052991. The next prime is 20429053033. The reversal of 20429053019 is 91035092402.

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

It is a cyclic number.

It is not a de Polignac number, because 20429053019 - 2²⁴ = 20412275803 is a prime.

It is a super-2 number, since 2×20429053019² (a number of 21 digits) contains 22 as substring.

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 20429053019.

It is not an unprimeable number, because it can be changed into a prime (20429058019) 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 3 ways as a sum of consecutive naturals, for example, 733052 + ... + 760409.

It is an arithmetic number, because the mean of its divisors is an integer number (5107640040).

Almost surely, 2^20429053019 is an apocalyptic number.

20429053019 is a deficient number, since it is larger than the sum of its proper divisors (1507141).

20429053019 is a wasteful number, since it uses less digits than its factorization.

20429053019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507140.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 20429053019 in words is "twenty billion, four hundred twenty-nine million, fifty-three thousand, nineteen".