23454343405 has 16 divisors (see below), whose sum is σ = 28297738800. Its totient is φ = 18662060032.

The previous prime is 23454343399. The next prime is 23454343439. The reversal of 23454343405 is 50434345432.

It can be written as a sum of positive squares in 8 ways, for example, as 17489124 + 23436854281 = 4182^2 + 153091^2 .

It is a cyclic number.

It is not a de Polignac number, because 23454343405 - 2⁵ = 23454343373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695187 + ... + 728143.

It is an arithmetic number, because the mean of its divisors is an integer number (1768608675).

Almost surely, 2^23454343405 is an apocalyptic number.

It is an amenable number.

23454343405 is a deficient number, since it is larger than the sum of its proper divisors (4843395395).

23454343405 is a wasteful number, since it uses less digits than its factorization.

23454343405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33728.

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 23454343405 its reverse (50434345432), we get a palindrome (73888688837).

The spelling of 23454343405 in words is "twenty-three billion, four hundred fifty-four million, three hundred forty-three thousand, four hundred five".