28262418378222 has 64 divisors (see below), whose sum is σ = 64912810973184. Its totient is φ = 8035946392320.

The previous prime is 28262418378221. The next prime is 28262418378241. The reversal of 28262418378222 is 22287381426282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28262418378221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5220138 + ... + 9152850.

It is an arithmetic number, because the mean of its divisors is an integer number (1014262671456).

Almost surely, 2^{28262418378222} is an apocalyptic number.

28262418378222 is an abundant number, since it is smaller than the sum of its proper divisors (36650392594962).

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

28262418378222 is a wasteful number, since it uses less digits than its factorization.

28262418378222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3933553.

The product of its digits is 16515072, while the sum is 57.

The spelling of 28262418378222 in words is "twenty-eight trillion, two hundred sixty-two billion, four hundred eighteen million, three hundred seventy-eight thousand, two hundred twenty-two".