68821364116 has 24 divisors (see below), whose sum is σ = 123745912136. Its totient is φ = 33466193280.

The previous prime is 68821364071. The next prime is 68821364119. The reversal of 68821364116 is 61146312886.

It can be written as a sum of positive squares in 4 ways, for example, as 34871827600 + 33949536516 = 186740^2 + 184254^2 .

It is a super-2 number, since 2×68821364116² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68821364119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247150 + ... + 445786.

Almost surely, 2^68821364116 is an apocalyptic number.

It is an amenable number.

68821364116 is a deficient number, since it is larger than the sum of its proper divisors (54924548020).

68821364116 is a wasteful number, since it uses less digits than its factorization.

68821364116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201019 (or 201017 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The spelling of 68821364116 in words is "sixty-eight billion, eight hundred twenty-one million, three hundred sixty-four thousand, one hundred sixteen".