8421195629 has 32 divisors (see below), whose sum is σ = 10740596736. Its totient is φ = 6412633920.

The previous prime is 8421195617. The next prime is 8421195631. The reversal of 8421195629 is 9265911248.

It is a happy number.

It is not a de Polignac number, because 8421195629 - 2⁸ = 8421195373 is a prime.

It is a super-3 number, since 3×8421195629³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8421195659) 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, 648767 + ... + 661619.

It is an arithmetic number, because the mean of its divisors is an integer number (335643648).

Almost surely, 2^8421195629 is an apocalyptic number.

It is an amenable number.

8421195629 is a deficient number, since it is larger than the sum of its proper divisors (2319401107).

8421195629 is a wasteful number, since it uses less digits than its factorization.

8421195629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065.

The product of its digits is 311040, while the sum is 47.

The square root of 8421195629 is about 91767.0726840515. The cubic root of 8421195629 is about 2034.5010521678.

It can be divided in two parts, 842119 and 5629, that added together give a palindrome (847748).

The spelling of 8421195629 in words is "eight billion, four hundred twenty-one million, one hundred ninety-five thousand, six hundred twenty-nine".