305148395083272 has 256 divisors, whose sum is σ = 872581248000000. Its totient is φ = 88151786597376.

The previous prime is 305148395083271. The next prime is 305148395083289. The reversal of 305148395083272 is 272380593841503.

It is not an unprimeable number, because it can be changed into a prime (305148395083271) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 387362929 + ... + 388149887.

It is an arithmetic number, because the mean of its divisors is an integer number (3408520500000).

Almost surely, 2^{305148395083272} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 305148395083272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436290624000000).

305148395083272 is an abundant number, since it is smaller than the sum of its proper divisors (567432852916728).

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

305148395083272 is a wasteful number, since it uses less digits than its factorization.

305148395083272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787588 (or 787584 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 305148395083272 in words is "three hundred five trillion, one hundred forty-eight billion, three hundred ninety-five million, eighty-three thousand, two hundred seventy-two".