23443478256 has 40 divisors (see below), whose sum is σ = 66067985664. Its totient is φ = 7104084160.

The previous prime is 23443478237. The next prime is 23443478257. The reversal of 23443478256 is 65287434432.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23443478257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22199736 + ... + 22200791.

Almost surely, 2^23443478256 is an apocalyptic number.

It is an amenable number.

23443478256 is an abundant number, since it is smaller than the sum of its proper divisors (42624507408).

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

23443478256 is a wasteful number, since it uses less digits than its factorization.

23443478256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44400549 (or 44400543 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 48.

The spelling of 23443478256 in words is "twenty-three billion, four hundred forty-three million, four hundred seventy-eight thousand, two hundred fifty-six".