8218423844274 has 64 divisors (see below), whose sum is σ = 20754748164096. Its totient is φ = 2113909526784.

The previous prime is 8218423844269. The next prime is 8218423844339. The reversal of 8218423844274 is 4724483248128.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250209612 + ... + 250242455.

It is an arithmetic number, because the mean of its divisors is an integer number (324292940064).

Almost surely, 2^{8218423844274} is an apocalyptic number.

8218423844274 is an abundant number, since it is smaller than the sum of its proper divisors (12536324319822).

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

8218423844274 is a wasteful number, since it uses less digits than its factorization.

8218423844274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500452119.

The product of its digits is 22020096, while the sum is 57.

The spelling of 8218423844274 in words is "eight trillion, two hundred eighteen billion, four hundred twenty-three million, eight hundred forty-four thousand, two hundred seventy-four".