23305149489 has 4 divisors (see below), whose sum is σ = 31073532656. Its totient is φ = 15536766324.

The previous prime is 23305149467. The next prime is 23305149577. The reversal of 23305149489 is 98494150332.

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 not a de Polignac number, because 23305149489 - 2⁵ = 23305149457 is a prime.

It is a super-2 number, since 2×23305149489² (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 (23305149419) 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, 3884191579 + ... + 3884191584.

It is an arithmetic number, because the mean of its divisors is an integer number (7768383164).

Almost surely, 2^23305149489 is an apocalyptic number.

It is an amenable number.

23305149489 is a deficient number, since it is larger than the sum of its proper divisors (7768383167).

23305149489 is an equidigital number, since it uses as much as digits as its factorization.

23305149489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7768383166.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 23305149489 in words is "twenty-three billion, three hundred five million, one hundred forty-nine thousand, four hundred eighty-nine".