12805458050 has 96 divisors (see below), whose sum is σ = 30386340864. Its totient is φ = 3898440000.

The previous prime is 12805458049. The next prime is 12805458059. The reversal of 12805458050 is 5085450821.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12805457995 and 12805458013.

It is not an unprimeable number, because it can be changed into a prime (12805458059) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126875 + ... + 204225.

It is an arithmetic number, because the mean of its divisors is an integer number (316524384).

Almost surely, 2^12805458050 is an apocalyptic number.

12805458050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12805458050 is an abundant number, since it is smaller than the sum of its proper divisors (17580882814).

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

12805458050 is a wasteful number, since it uses less digits than its factorization.

12805458050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77424 (or 77419 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The spelling of 12805458050 in words is "twelve billion, eight hundred five million, four hundred fifty-eight thousand, fifty".