28438828022270 has 16 divisors (see below), whose sum is σ = 51189973572240. Its totient is φ = 11375512735104.

The previous prime is 28438828022243. The next prime is 28438828022287. The reversal of 28438828022270 is 7222082883482.

28438828022270 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5373446 + ... + 9260214.

It is an arithmetic number, because the mean of its divisors is an integer number (3199373348265).

Almost surely, 2^{28438828022270} is an apocalyptic number.

28438828022270 is a deficient number, since it is larger than the sum of its proper divisors (22751145549970).

28438828022270 is a wasteful number, since it uses less digits than its factorization.

28438828022270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618459.

The product of its (nonzero) digits is 11010048, while the sum is 56.

The spelling of 28438828022270 in words is "twenty-eight trillion, four hundred thirty-eight billion, eight hundred twenty-eight million, twenty-two thousand, two hundred seventy".