23845121727 has 16 divisors (see below), whose sum is σ = 36338803200. Its totient is φ = 13624516512.

The previous prime is 23845121717. The next prime is 23845121749. The reversal of 23845121727 is 72712154832.

It is a happy number.

It is not a de Polignac number, because 23845121727 - 2⁴ = 23845121711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23845121717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208398 + ... + 301860.

It is an arithmetic number, because the mean of its divisors is an integer number (2271175200).

Almost surely, 2^23845121727 is an apocalyptic number.

23845121727 is a deficient number, since it is larger than the sum of its proper divisors (12493681473).

23845121727 is a wasteful number, since it uses less digits than its factorization.

23845121727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105622.

The product of its digits is 188160, while the sum is 42.

The spelling of 23845121727 in words is "twenty-three billion, eight hundred forty-five million, one hundred twenty-one thousand, seven hundred twenty-seven".