28618849231272 has 384 divisors, whose sum is σ = 87602106009600. Its totient is φ = 8727724608768.

The previous prime is 28618849231253. The next prime is 28618849231289. The reversal of 28618849231272 is 27213294881682.

28618849231272 is a `hidden beast` number, since 2 + 8 + 6 + 18 + 8 + 492 + 3 + 127 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 97459693 + ... + 97752899.

It is an arithmetic number, because the mean of its divisors is an integer number (228130484400).

Almost surely, 2^{28618849231272} 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 28618849231272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43801053004800).

28618849231272 is an abundant number, since it is smaller than the sum of its proper divisors (58983256778328).

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

28618849231272 is a wasteful number, since it uses less digits than its factorization.

28618849231272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293347 (or 293331 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 28618849231272 in words is "twenty-eight trillion, six hundred eighteen billion, eight hundred forty-nine million, two hundred thirty-one thousand, two hundred seventy-two".