68821443076 has 6 divisors (see below), whose sum is σ = 120437525390. Its totient is φ = 34410721536.

The previous prime is 68821443071. The next prime is 68821443091. The reversal of 68821443076 is 67034412886.

It can be written as a sum of positive squares in only one way, i.e., 61523841600 + 7297601476 = 248040^2 + 85426^2 .

It is not an unprimeable number, because it can be changed into a prime (68821443071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8602680381 + ... + 8602680388.

Almost surely, 2^68821443076 is an apocalyptic number.

It is an amenable number.

68821443076 is a deficient number, since it is larger than the sum of its proper divisors (51616082314).

68821443076 is a wasteful number, since it uses less digits than its factorization.

68821443076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17205360773 (or 17205360771 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 68821443076 in words is "sixty-eight billion, eight hundred twenty-one million, four hundred forty-three thousand, seventy-six".