23143751736 has 96 divisors (see below), whose sum is σ = 67442400000. Its totient is φ = 6599081664.

The previous prime is 23143751731. The next prime is 23143751749. The reversal of 23143751736 is 63715734132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143751731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567105 + ... + 606543.

It is an arithmetic number, because the mean of its divisors is an integer number (702525000).

Almost surely, 2^23143751736 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 23143751736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33721200000).

23143751736 is an abundant number, since it is smaller than the sum of its proper divisors (44298648264).

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

23143751736 is a wasteful number, since it uses less digits than its factorization.

23143751736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39961 (or 39950 counting only the distinct ones).

The product of its digits is 317520, while the sum is 42.

The spelling of 23143751736 in words is "twenty-three billion, one hundred forty-three million, seven hundred fifty-one thousand, seven hundred thirty-six".