8421067611 has 32 divisors (see below), whose sum is σ = 13616951040. Its totient is φ = 5100998400.

The previous prime is 8421067601. The next prime is 8421067621. The reversal of 8421067611 is 1167601248.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8421067601) and next prime (8421067621).

It is not a de Polignac number, because 8421067611 - 2¹⁷ = 8420936539 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8421067601) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 659851 + ... + 672491.

It is an arithmetic number, because the mean of its divisors is an integer number (425529720).

Almost surely, 2^8421067611 is an apocalyptic number.

8421067611 is a deficient number, since it is larger than the sum of its proper divisors (5195883429).

8421067611 is a wasteful number, since it uses less digits than its factorization.

8421067611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14904 (or 14898 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8421067611 is about 91766.3751654167. The cubic root of 8421067611 is about 2034.4907427024.

Adding to 8421067611 its reverse (1167601248), we get a palindrome (9588668859).

The spelling of 8421067611 in words is "eight billion, four hundred twenty-one million, sixty-seven thousand, six hundred eleven".