23318673840 has 480 divisors, whose sum is σ = 99304358400. Its totient is φ = 4762644480.

The previous prime is 23318673827. The next prime is 23318673877. The reversal of 23318673840 is 4837681332.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3267396 + ... + 3274524.

It is an arithmetic number, because the mean of its divisors is an integer number (206884080).

Almost surely, 2^23318673840 is an apocalyptic number.

23318673840 is a gapful number since it is divisible by the number (20) 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 23318673840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49652179200).

23318673840 is an abundant number, since it is smaller than the sum of its proper divisors (75985684560).

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

23318673840 is a wasteful number, since it uses less digits than its factorization.

23318673840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225 (or 7216 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 23318673840 in words is "twenty-three billion, three hundred eighteen million, six hundred seventy-three thousand, eight hundred forty".