82643434628 has 12 divisors (see below), whose sum is σ = 146057952012. Its totient is φ = 40912591200.

The previous prime is 82643434547. The next prime is 82643434631.

82643434628 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 39445137664 + 43198296964 = 198608^2 + 207842^2 .

It is a super-2 number, since 2×82643434628² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102281075 + ... + 102281882.

It is an arithmetic number, because the mean of its divisors is an integer number (12171496001).

Almost surely, 2^82643434628 is an apocalyptic number.

It is an amenable number.

82643434628 is a deficient number, since it is larger than the sum of its proper divisors (63414517384).

82643434628 is a wasteful number, since it uses less digits than its factorization.

82643434628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204563062 (or 204563060 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 50.

The spelling of 82643434628 in words is "eighty-two billion, six hundred forty-three million, four hundred thirty-four thousand, six hundred twenty-eight".