23721783960 has 320 divisors, whose sum is σ = 83601110880. Its totient is φ = 5384386560.

The previous prime is 23721783949. The next prime is 23721783973. The reversal of 23721783960 is 6938712732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 80961574 + ... + 80961866.

Almost surely, 2^23721783960 is an apocalyptic number.

23721783960 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 23721783960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41800555440).

23721783960 is an abundant number, since it is smaller than the sum of its proper divisors (59879326920).

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

23721783960 is a wasteful number, since it uses less digits than its factorization.

23721783960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 23721783960 in words is "twenty-three billion, seven hundred twenty-one million, seven hundred eighty-three thousand, nine hundred sixty".