305108128026 has 32 divisors (see below), whose sum is σ = 730173299520. Its totient is φ = 93879423792.

The previous prime is 305108128007. The next prime is 305108128027. The reversal of 305108128026 is 620821801503.

It is a happy number.

305108128026 is a `hidden beast` number, since 30 + 510 + 8 + 12 + 80 + 26 = 666.

It is not an unprimeable number, because it can be changed into a prime (305108128027) 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 15 ways as a sum of consecutive naturals, for example, 217312780 + ... + 217314183.

It is an arithmetic number, because the mean of its divisors is an integer number (22817915610).

Almost surely, 2^305108128026 is an apocalyptic number.

305108128026 is an abundant number, since it is smaller than the sum of its proper divisors (425065171494).

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

305108128026 is a wasteful number, since it uses less digits than its factorization.

305108128026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434626987 (or 434626981 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

Adding to 305108128026 its reverse (620821801503), we get a palindrome (925929929529).

The spelling of 305108128026 in words is "three hundred five billion, one hundred eight million, one hundred twenty-eight thousand, twenty-six".