23711761920 has 640 divisors, whose sum is σ = 95684447232. Its totient is φ = 4866048000.

The previous prime is 23711761919. The next prime is 23711761963. The reversal of 23711761920 is 2916711732.

It is a tau number, because it is divible by the number of its divisors (640).

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, 59727162 + ... + 59727558.

Almost surely, 2^23711761920 is an apocalyptic number.

23711761920 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 23711761920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47842223616).

23711761920 is an abundant number, since it is smaller than the sum of its proper divisors (71972685312).

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

23711761920 is a wasteful number, since it uses less digits than its factorization.

23711761920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

It can be divided in two parts, 23711 and 761920, that added together give a triangular number (785631 = T₁₂₅₃).

The spelling of 23711761920 in words is "twenty-three billion, seven hundred eleven million, seven hundred sixty-one thousand, nine hundred twenty".