20430675326 has 4 divisors (see below), whose sum is σ = 30646012992. Its totient is φ = 10215337662.

The previous prime is 20430675311. The next prime is 20430675341. The reversal of 20430675326 is 62357603402.

It is a happy number.

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 (20430675311) and next prime (20430675341).

It is a self number, because there is not a number n which added to its sum of digits gives 20430675326.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5107668830 + ... + 5107668833.

It is an arithmetic number, because the mean of its divisors is an integer number (7661503248).

Almost surely, 2^20430675326 is an apocalyptic number.

20430675326 is a deficient number, since it is larger than the sum of its proper divisors (10215337666).

20430675326 is a wasteful number, since it uses less digits than its factorization.

20430675326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215337665.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 20430675326 in words is "twenty billion, four hundred thirty million, six hundred seventy-five thousand, three hundred twenty-six".