23609436984 has 256 divisors, whose sum is σ = 76349952000. Its totient is φ = 6620745600.

The previous prime is 23609436941. The next prime is 23609437001. The reversal of 23609436984 is 48963490632.

23609436984 is a `hidden beast` number, since 23 + 609 + 4 + 3 + 6 + 9 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 23609436984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22463259 + ... + 22464309.

It is an arithmetic number, because the mean of its divisors is an integer number (298242000).

Almost surely, 2^23609436984 is an apocalyptic number.

23609436984 is a gapful number since it is divisible by the number (24) 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 23609436984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38174976000).

23609436984 is an abundant number, since it is smaller than the sum of its proper divisors (52740515016).

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

23609436984 is a wasteful number, since it uses less digits than its factorization.

23609436984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 23609436984 in words is "twenty-three billion, six hundred nine million, four hundred thirty-six thousand, nine hundred eighty-four".