23723471856 has 40 divisors (see below), whose sum is σ = 70040727424. Its totient is φ = 6778134720.

The previous prime is 23723471843. The next prime is 23723471861. The reversal of 23723471856 is 65817432732.

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

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 35302450 + ... + 35303121.

Almost surely, 2^23723471856 is an apocalyptic number.

It is an amenable number.

23723471856 is an abundant number, since it is smaller than the sum of its proper divisors (46317255568).

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

23723471856 is a wasteful number, since it uses less digits than its factorization.

23723471856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70605589 (or 70605583 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 48.

The spelling of 23723471856 in words is "twenty-three billion, seven hundred twenty-three million, four hundred seventy-one thousand, eight hundred fifty-six".