23147669728 has 12 divisors (see below), whose sum is σ = 45571974840. Its totient is φ = 11573834848.

The previous prime is 23147669723. The next prime is 23147669813. The reversal of 23147669728 is 82796674132.

It is a super-2 number, since 2×23147669728² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23147669723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361682308 + ... + 361682371.

It is an arithmetic number, because the mean of its divisors is an integer number (3797664570).

Almost surely, 2^23147669728 is an apocalyptic number.

It is an amenable number.

23147669728 is a deficient number, since it is larger than the sum of its proper divisors (22424305112).

23147669728 is an equidigital number, since it uses as much as digits as its factorization.

23147669728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723364689 (or 723364681 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 55.

The spelling of 23147669728 in words is "twenty-three billion, one hundred forty-seven million, six hundred sixty-nine thousand, seven hundred twenty-eight".