23545939943 has 8 divisors (see below), whose sum is σ = 24786617520. Its totient is φ = 22305404160.

The previous prime is 23545939939. The next prime is 23545939951. The reversal of 23545939943 is 34993954532.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23545939943 - 2² = 23545939939 is a prime.

It is a super-2 number, since 2×23545939943² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23545939973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576023 + ... + 615543.

It is an arithmetic number, because the mean of its divisors is an integer number (3098327190).

Almost surely, 2^23545939943 is an apocalyptic number.

23545939943 is a deficient number, since it is larger than the sum of its proper divisors (1240677577).

23545939943 is a wasteful number, since it uses less digits than its factorization.

23545939943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70897.

The product of its digits is 15746400, while the sum is 56.

The spelling of 23545939943 in words is "twenty-three billion, five hundred forty-five million, nine hundred thirty-nine thousand, nine hundred forty-three".