23144364450 has 72 divisors (see below), whose sum is σ = 62344009728. Its totient is φ = 6155670240.

The previous prime is 23144364449. The next prime is 23144364499. The reversal of 23144364450 is 5446344132.

23144364450 is a `hidden beast` number, since 2 + 3 + 1 + 4 + 4 + 3 + 644 + 5 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105207 + ... + 239493.

It is an arithmetic number, because the mean of its divisors is an integer number (865889024).

Almost surely, 2^23144364450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23144364450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31172004864).

23144364450 is an abundant number, since it is smaller than the sum of its proper divisors (39199645278).

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

23144364450 is a wasteful number, since it uses less digits than its factorization.

23144364450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134688 (or 134680 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The spelling of 23144364450 in words is "twenty-three billion, one hundred forty-four million, three hundred sixty-four thousand, four hundred fifty".