20468932405 has 8 divisors (see below), whose sum is σ = 24564114432. Its totient is φ = 16374215568.

The previous prime is 20468932403. The next prime is 20468932423. The reversal of 20468932405 is 50423986402.

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 20468932405 - 2¹ = 20468932403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20468932403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10789 + ... + 202618.

It is an arithmetic number, because the mean of its divisors is an integer number (3070514304).

Almost surely, 2^20468932405 is an apocalyptic number.

It is an amenable number.

20468932405 is a deficient number, since it is larger than the sum of its proper divisors (4095182027).

20468932405 is a wasteful number, since it uses less digits than its factorization.

20468932405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232595.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 20468932405 in words is "twenty billion, four hundred sixty-eight million, nine hundred thirty-two thousand, four hundred five".