8123864025 has 24 divisors (see below), whose sum is σ = 13759056864. Its totient is φ = 4227049600.

The previous prime is 8123864011. The next prime is 8123864027. The reversal of 8123864025 is 5204683218.

It is not a de Polignac number, because 8123864025 - 2⁶ = 8123863961 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8123864027) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1317879 + ... + 1324028.

It is an arithmetic number, because the mean of its divisors is an integer number (573294036).

Almost surely, 2^8123864025 is an apocalyptic number.

It is an amenable number.

8123864025 is a deficient number, since it is larger than the sum of its proper divisors (5635192839).

8123864025 is a wasteful number, since it uses less digits than its factorization.

8123864025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641961 (or 2641956 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 8123864025 is about 90132.4804107820. The cubic root of 8123864025 is about 2010.2691837700.

The spelling of 8123864025 in words is "eight billion, one hundred twenty-three million, eight hundred sixty-four thousand, twenty-five".