23489681911 has 8 divisors (see below), whose sum is σ = 24086777904. Its totient is φ = 22893737280.

The previous prime is 23489681909. The next prime is 23489681927. The reversal of 23489681911 is 11918698432.

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

It is a cyclic number.

It is not a de Polignac number, because 23489681911 - 2¹ = 23489681909 is a prime.

It is a super-2 number, since 2×23489681911² (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 (23489681951) 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, 246445 + ... + 328198.

It is an arithmetic number, because the mean of its divisors is an integer number (3010847238).

Almost surely, 2^23489681911 is an apocalyptic number.

23489681911 is a deficient number, since it is larger than the sum of its proper divisors (597095993).

23489681911 is an equidigital number, since it uses as much as digits as its factorization.

23489681911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575681.

The product of its digits is 746496, while the sum is 52.

The spelling of 23489681911 in words is "twenty-three billion, four hundred eighty-nine million, six hundred eighty-one thousand, nine hundred eleven".