23823640554 has 128 divisors (see below), whose sum is σ = 57760972800. Its totient is φ = 6540912000.

The previous prime is 23823640553. The next prime is 23823640571. The reversal of 23823640554 is 45504632832.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (23823640553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9632262 + ... + 9634734.

It is an arithmetic number, because the mean of its divisors is an integer number (451257600).

Almost surely, 2^23823640554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23823640554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28880486400).

23823640554 is an abundant number, since it is smaller than the sum of its proper divisors (33937332246).

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

23823640554 is a wasteful number, since it uses less digits than its factorization.

23823640554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681 (or 2667 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 23823640554 in words is "twenty-three billion, eight hundred twenty-three million, six hundred forty thousand, five hundred fifty-four".