23068331840 has 56 divisors (see below), whose sum is σ = 56271289032. Its totient is φ = 9002270720.

The previous prime is 23068331773. The next prime is 23068331843. The reversal of 23068331840 is 4813386032.

It can be written as a sum of positive squares in 4 ways, for example, as 2417492224 + 20650839616 = 49168^2 + 143704^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23068331794 and 23068331803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23068331843) 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, 866009 + ... + 892248.

It is an arithmetic number, because the mean of its divisors is an integer number (1004844447).

Almost surely, 2^23068331840 is an apocalyptic number.

23068331840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23068331840 is an abundant number, since it is smaller than the sum of its proper divisors (33202957192).

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

23068331840 is a wasteful number, since it uses less digits than its factorization.

23068331840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758315 (or 1758305 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 23068331840 in words is "twenty-three billion, sixty-eight million, three hundred thirty-one thousand, eight hundred forty".