23454442454405 has 4 divisors (see below), whose sum is σ = 28145330945292. Its totient is φ = 18763553963520.

The previous prime is 23454442454371. The next prime is 23454442454437. The reversal of 23454442454405 is 50445424445432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2688858771076 + 20765583683329 = 1639774^2 + 4556927^2 .

It is not a de Polignac number, because 23454442454405 - 2⁶ = 23454442454341 is a prime.

It is a super-2 number, since 2×23454442454405² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345444245436 + ... + 2345444245445.

It is an arithmetic number, because the mean of its divisors is an integer number (7036332736323).

Almost surely, 2^{23454442454405} is an apocalyptic number.

It is an amenable number.

23454442454405 is a deficient number, since it is larger than the sum of its proper divisors (4690888490887).

23454442454405 is an equidigital number, since it uses as much as digits as its factorization.

23454442454405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690888490886.

The product of its (nonzero) digits is 24576000, while the sum is 50.

Adding to 23454442454405 its reverse (50445424445432), we get a palindrome (73899866899837).

The spelling of 23454442454405 in words is "twenty-three trillion, four hundred fifty-four billion, four hundred forty-two million, four hundred fifty-four thousand, four hundred five".