23893479444 has 12 divisors (see below), whose sum is σ = 55751452064. Its totient is φ = 7964493144.

The previous prime is 23893479329. The next prime is 23893479461. The reversal of 23893479444 is 44497439832.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995561632 + ... + 995561655.

Almost surely, 2^23893479444 is an apocalyptic number.

It is an amenable number.

23893479444 is an abundant number, since it is smaller than the sum of its proper divisors (31857972620).

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

23893479444 is a wasteful number, since it uses less digits than its factorization.

23893479444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991123294 (or 1991123292 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 57.

The spelling of 23893479444 in words is "twenty-three billion, eight hundred ninety-three million, four hundred seventy-nine thousand, four hundred forty-four".