20430829726 has 4 divisors (see below), whose sum is σ = 30646244592. Its totient is φ = 10215414862.

The previous prime is 20430829723. The next prime is 20430829729. The reversal of 20430829726 is 62792803402.

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

It is an interprime number because it is at equal distance from previous prime (20430829723) and next prime (20430829729).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430829723) 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 as a sum of consecutive naturals, namely, 5107707430 + ... + 5107707433.

It is an arithmetic number, because the mean of its divisors is an integer number (7661561148).

Almost surely, 2^20430829726 is an apocalyptic number.

20430829726 is a deficient number, since it is larger than the sum of its proper divisors (10215414866).

20430829726 is a wasteful number, since it uses less digits than its factorization.

20430829726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215414865.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 20430829726 in words is "twenty billion, four hundred thirty million, eight hundred twenty-nine thousand, seven hundred twenty-six".