23987681280 has 384 divisors, whose sum is σ = 86930625600. Its totient is φ = 6272188416.

The previous prime is 23987681273. The next prime is 23987681281. The reversal of 23987681280 is 8218678932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23987681281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14652622 + ... + 14654258.

Almost surely, 2^23987681280 is an apocalyptic number.

23987681280 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 23987681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43465312800).

23987681280 is an abundant number, since it is smaller than the sum of its proper divisors (62942944320).

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

23987681280 is a wasteful number, since it uses less digits than its factorization.

23987681280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1700 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 23987681280 in words is "twenty-three billion, nine hundred eighty-seven million, six hundred eighty-one thousand, two hundred eighty".