23544100042 has 4 divisors (see below), whose sum is σ = 35316150066. Its totient is φ = 11772050020.

The previous prime is 23544099991. The next prime is 23544100043. The reversal of 23544100042 is 24000144532.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 22855090041 + 689010001 = 151179^2 + 26249^2 .

It is not an unprimeable number, because it can be changed into a prime (23544100043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5886025009 + ... + 5886025012.

Almost surely, 2^23544100042 is an apocalyptic number.

23544100042 is a deficient number, since it is larger than the sum of its proper divisors (11772050024).

23544100042 is a wasteful number, since it uses less digits than its factorization.

23544100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11772050023.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 23544100042 its reverse (24000144532), we get a palindrome (47544244574).

The spelling of 23544100042 in words is "twenty-three billion, five hundred forty-four million, one hundred thousand, forty-two".