84420226802 has 18 divisors (see below), whose sum is σ = 129820122477. Its totient is φ = 41172380400.

The previous prime is 84420226783. The next prime is 84420226817. The reversal of 84420226802 is 20862202448.

It can be written as a sum of positive squares in 2 ways, for example, as 60289400521 + 24130826281 = 245539^2 + 155341^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=205451.

It is a super-2 number, since 2×84420226802² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16844477 + ... + 16849487.

Almost surely, 2^84420226802 is an apocalyptic number.

84420226802 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

84420226802 is a deficient number, since it is larger than the sum of its proper divisors (45399895675).

84420226802 is an frugal number, since it uses more digits than its factorization.

84420226802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106 (or 5054 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The spelling of 84420226802 in words is "eighty-four billion, four hundred twenty million, two hundred twenty-six thousand, eight hundred two".