84426439122 has 24 divisors (see below), whose sum is σ = 187385512860. Its totient is φ = 27455752320.

The previous prime is 84426439103. The next prime is 84426439177. The reversal of 84426439122 is 22193462448.

84426439122 is a `hidden beast` number, since 84 + 426 + 43 + 91 + 22 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 83277839241 + 1148599881 = 288579^2 + 33891^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57198747 + ... + 57200222.

Almost surely, 2^84426439122 is an apocalyptic number.

84426439122 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

84426439122 is an abundant number, since it is smaller than the sum of its proper divisors (102959073738).

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

84426439122 is a wasteful number, since it uses less digits than its factorization.

84426439122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114399018 (or 114399015 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 84426439122 in words is "eighty-four billion, four hundred twenty-six million, four hundred thirty-nine thousand, one hundred twenty-two".