22431403450505 has 8 divisors (see below), whose sum is σ = 30763067589312. Its totient is φ = 15381533794608.

The previous prime is 22431403450501. The next prime is 22431403450529. The reversal of 22431403450505 is 50505430413422.

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 22431403450505 - 2² = 22431403450501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22431403450501) 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, 320448620687 + ... + 320448620756.

It is an arithmetic number, because the mean of its divisors is an integer number (3845383448664).

Almost surely, 2^{22431403450505} is an apocalyptic number.

It is an amenable number.

22431403450505 is a deficient number, since it is larger than the sum of its proper divisors (8331664138807).

22431403450505 is an equidigital number, since it uses as much as digits as its factorization.

22431403450505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640897241455.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 22431403450505 its reverse (50505430413422), we get a palindrome (72936833863927).

The spelling of 22431403450505 in words is "twenty-two trillion, four hundred thirty-one billion, four hundred three million, four hundred fifty thousand, five hundred five".