23515453242 has 24 divisors (see below), whose sum is σ = 52707051540. Its totient is φ = 7568191680.

The previous prime is 23515453229. The next prime is 23515453243. The reversal of 23515453242 is 24235451532.

23515453242 is a `hidden beast` number, since 2 + 35 + 1 + 54 + 532 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22165552161 + 1349901081 = 148881^2 + 36741^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23515453197 and 23515453206.

It is not an unprimeable number, because it can be changed into a prime (23515453243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22523859 + ... + 22524902.

Almost surely, 2^23515453242 is an apocalyptic number.

23515453242 is an abundant number, since it is smaller than the sum of its proper divisors (29191598298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23515453242 is a wasteful number, since it uses less digits than its factorization.

23515453242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45048798 (or 45048795 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The spelling of 23515453242 in words is "twenty-three billion, five hundred fifteen million, four hundred fifty-three thousand, two hundred forty-two".