23545376993 has 4 divisors (see below), whose sum is σ = 23545770240. Its totient is φ = 23544983748.

The previous prime is 23545376983. The next prime is 23545377019. The reversal of 23545376993 is 39967354532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23545376993 - 2¹² = 23545372897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23545376983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86105 + ... + 233462.

It is an arithmetic number, because the mean of its divisors is an integer number (5886442560).

Almost surely, 2^23545376993 is an apocalyptic number.

It is an amenable number.

23545376993 is a deficient number, since it is larger than the sum of its proper divisors (393247).

23545376993 is an equidigital number, since it uses as much as digits as its factorization.

23545376993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393246.

The product of its digits is 18370800, while the sum is 56.

The spelling of 23545376993 in words is "twenty-three billion, five hundred forty-five million, three hundred seventy-six thousand, nine hundred ninety-three".