81410068084036 has 6 divisors (see below), whose sum is σ = 142467619147070. Its totient is φ = 40705034042016.

The previous prime is 81410068084013. The next prime is 81410068084039. The reversal of 81410068084036 is 63048086001418.

It can be written as a sum of positive squares in only one way, i.e., 42565263930436 + 38844804153600 = 6524206^2 + 6232560^2 .

It is not an unprimeable number, because it can be changed into a prime (81410068084039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176258510501 + ... + 10176258510508.

Almost surely, 2^{81410068084036} is an apocalyptic number.

It is an amenable number.

81410068084036 is a deficient number, since it is larger than the sum of its proper divisors (61057551063034).

81410068084036 is a wasteful number, since it uses less digits than its factorization.

81410068084036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20352517021013 (or 20352517021011 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 81410068084036 in words is "eighty-one trillion, four hundred ten billion, sixty-eight million, eighty-four thousand, thirty-six".