23361847681 has 4 divisors (see below), whose sum is σ = 23362895872. Its totient is φ = 23360799492.

The previous prime is 23361847633. The next prime is 23361847781. The reversal of 23361847681 is 18674816332.

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 23361847681 - 2⁹ = 23361847169 is a prime.

It is a super-2 number, since 2×23361847681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23361847781) 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, 489921 + ... + 535486.

It is an arithmetic number, because the mean of its divisors is an integer number (5840723968).

Almost surely, 2^23361847681 is an apocalyptic number.

It is an amenable number.

23361847681 is a deficient number, since it is larger than the sum of its proper divisors (1048191).

23361847681 is a wasteful number, since it uses less digits than its factorization.

23361847681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048190.

The product of its digits is 1161216, while the sum is 49.

The spelling of 23361847681 in words is "twenty-three billion, three hundred sixty-one million, eight hundred forty-seven thousand, six hundred eighty-one".