23802009841 has 3 divisors (see below), whose sum is σ = 23802164121. Its totient is φ = 23801855562.

The previous prime is 23802009823. The next prime is 23802009851. The reversal of 23802009841 is 14890020832.

The square root of 23802009841 is 154279.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 23802009841 - 2¹⁹ = 23801485553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23802009841.

It is not an unprimeable number, because it can be changed into a prime (23802009851) 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 2 ways as a sum of consecutive naturals, for example, 77140 + ... + 231418.

It is an arithmetic number, because the mean of its divisors is an integer number (7934054707).

Almost surely, 2^23802009841 is an apocalyptic number.

23802009841 is the 154279-th square number.

23802009841 is the 77140-th centered octagonal number.

It is an amenable number.

23802009841 is a deficient number, since it is larger than the sum of its proper divisors (154280).

23802009841 is an frugal number, since it uses more digits than its factorization.

23802009841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308558 (or 154279 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 23802009841 in words is "twenty-three billion, eight hundred two million, nine thousand, eight hundred forty-one".