20423500005 has 8 divisors (see below), whose sum is σ = 32677600032. Its totient is φ = 10892533328.

The previous prime is 20423499977. The next prime is 20423500039. The reversal of 20423500005 is 50000532402.

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

It is a cyclic number.

It is not a de Polignac number, because 20423500005 - 2⁸ = 20423499749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680783319 + ... + 680783348.

It is an arithmetic number, because the mean of its divisors is an integer number (4084700004).

Almost surely, 2^20423500005 is an apocalyptic number.

It is an amenable number.

20423500005 is a deficient number, since it is larger than the sum of its proper divisors (12254100027).

20423500005 is a wasteful number, since it uses less digits than its factorization.

20423500005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361566675.

The product of its (nonzero) digits is 1200, while the sum is 21.

The spelling of 20423500005 in words is "twenty billion, four hundred twenty-three million, five hundred thousand, five".