82628112818 has 16 divisors (see below), whose sum is σ = 125356931640. Its totient is φ = 40842633216.

The previous prime is 82628112811. The next prime is 82628112821. The reversal of 82628112818 is 81821182628.

It can be written as a sum of positive squares in 4 ways, for example, as 68255220049 + 14372892769 = 261257^2 + 119887^2 .

It is a super-2 number, since 2×82628112818² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82628112811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050146 + ... + 1126082.

Almost surely, 2^82628112818 is an apocalyptic number.

82628112818 is a deficient number, since it is larger than the sum of its proper divisors (42728818822).

82628112818 is a wasteful number, since it uses less digits than its factorization.

82628112818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82141.

The product of its digits is 196608, while the sum is 47.

The spelling of 82628112818 in words is "eighty-two billion, six hundred twenty-eight million, one hundred twelve thousand, eight hundred eighteen".