23728749806 has 4 divisors (see below), whose sum is σ = 35593124712. Its totient is φ = 11864374902.

The previous prime is 23728749769. The next prime is 23728749823. The reversal of 23728749806 is 60894782732.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932187450 + ... + 5932187453.

It is an arithmetic number, because the mean of its divisors is an integer number (8898281178).

Almost surely, 2^23728749806 is an apocalyptic number.

23728749806 is a deficient number, since it is larger than the sum of its proper divisors (11864374906).

23728749806 is a wasteful number, since it uses less digits than its factorization.

23728749806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11864374905.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 23728749806 in words is "twenty-three billion, seven hundred twenty-eight million, seven hundred forty-nine thousand, eight hundred six".