23452432551 has 8 divisors (see below), whose sum is σ = 34744344560. Its totient is φ = 15634955016.

The previous prime is 23452432547. The next prime is 23452432571. The reversal of 23452432551 is 15523425432.

23452432551 is a `hidden beast` number, since 2 + 345 + 243 + 25 + 51 = 666.

It is not a de Polignac number, because 23452432551 - 2² = 23452432547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23452432541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434304280 + ... + 434304333.

It is an arithmetic number, because the mean of its divisors is an integer number (4343043070).

Almost surely, 2^23452432551 is an apocalyptic number.

23452432551 is a deficient number, since it is larger than the sum of its proper divisors (11291912009).

23452432551 is an equidigital number, since it uses as much as digits as its factorization.

23452432551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868608622 (or 868608616 counting only the distinct ones).

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

Adding to 23452432551 its reverse (15523425432), we get a palindrome (38975857983).

The spelling of 23452432551 in words is "twenty-three billion, four hundred fifty-two million, four hundred thirty-two thousand, five hundred fifty-one".