23147947328 has 112 divisors (see below), whose sum is σ = 50694336000. Its totient is φ = 10399833600.

The previous prime is 23147947309. The next prime is 23147947373. The reversal of 23147947328 is 82374974132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46019525 + ... + 46020027.

It is an arithmetic number, because the mean of its divisors is an integer number (452628000).

Almost surely, 2^23147947328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23147947328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25347168000).

23147947328 is an abundant number, since it is smaller than the sum of its proper divisors (27546388672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23147947328 is a wasteful number, since it uses less digits than its factorization.

23147947328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1146 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The spelling of 23147947328 in words is "twenty-three billion, one hundred forty-seven million, nine hundred forty-seven thousand, three hundred twenty-eight".