8421419682 has 24 divisors (see below), whose sum is σ = 19649979804. Its totient is φ = 2591205984.

The previous prime is 8421419681. The next prime is 8421419737. The reversal of 8421419682 is 2869141248.

It can be written as a sum of positive squares in 2 ways, for example, as 8177404041 + 244015641 = 90429^2 + 15621^2 .

It is a super-2 number, since 2×8421419682² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8421419681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17994253 + ... + 17994720.

Almost surely, 2^8421419682 is an apocalyptic number.

8421419682 is an abundant number, since it is smaller than the sum of its proper divisors (11228560122).

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

8421419682 is a wasteful number, since it uses less digits than its factorization.

8421419682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35988994 (or 35988991 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 8421419682 is about 91768.2934460481. The cubic root of 8421419682 is about 2034.5190952123.

The spelling of 8421419682 in words is "eight billion, four hundred twenty-one million, four hundred nineteen thousand, six hundred eighty-two".