23644420992 has 336 divisors, whose sum is σ = 73982109600. Its totient is φ = 7523062272.

The previous prime is 23644420991. The next prime is 23644420993. The reversal of 23644420992 is 29902444632.

It is an interprime number because it is at equal distance from previous prime (23644420991) and next prime (23644420993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23644420991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 49361809 + ... + 49362287.

It is an arithmetic number, because the mean of its divisors is an integer number (220184850).

Almost surely, 2^23644420992 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 23644420992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36991054800).

23644420992 is an abundant number, since it is smaller than the sum of its proper divisors (50337688608).

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

23644420992 is an frugal number, since it uses more digits than its factorization.

23644420992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 23644420992 in words is "twenty-three billion, six hundred forty-four million, four hundred twenty thousand, nine hundred ninety-two".