23017728707072 has 160 divisors (see below), whose sum is σ = 51018815390400. Its totient is φ = 10287212953600.

The previous prime is 23017728707069. The next prime is 23017728707089. The reversal of 23017728707072 is 27070782771032.

It is a happy 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, 89595122 + ... + 89851662.

It is an arithmetic number, because the mean of its divisors is an integer number (318867596190).

Almost surely, 2^{23017728707072} is an apocalyptic number.

23017728707072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23017728707072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25509407695200).

23017728707072 is an abundant number, since it is smaller than the sum of its proper divisors (28001086683328).

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

23017728707072 is a wasteful number, since it uses less digits than its factorization.

23017728707072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256838 (or 256822 counting only the distinct ones).

The product of its (nonzero) digits is 3226944, while the sum is 53.

The spelling of 23017728707072 in words is "twenty-three trillion, seventeen billion, seven hundred twenty-eight million, seven hundred seven thousand, seventy-two".