28107181071306 has 48 divisors (see below), whose sum is σ = 61049034622368. Its totient is φ = 9345977877600.

The previous prime is 28107181071283. The next prime is 28107181071349. The reversal of 28107181071306 is 60317018170182.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20010505 + ... + 21369011.

It is an arithmetic number, because the mean of its divisors is an integer number (1271854887966).

Almost surely, 2^{28107181071306} is an apocalyptic number.

28107181071306 is an abundant number, since it is smaller than the sum of its proper divisors (32941853551062).

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

28107181071306 is a wasteful number, since it uses less digits than its factorization.

28107181071306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361347 (or 1361344 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 28107181071306 in words is "twenty-eight trillion, one hundred seven billion, one hundred eighty-one million, seventy-one thousand, three hundred six".