77181810741804 has 48 divisors (see below), whose sum is σ = 180239674245120. Its totient is φ = 25706021207040.

The previous prime is 77181810741731. The next prime is 77181810741869. The reversal of 77181810741804 is 40814701818177.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111038412 + ... + 111731340.

It is an arithmetic number, because the mean of its divisors is an integer number (3754993213440).

Almost surely, 2^{77181810741804} is an apocalyptic number.

It is an amenable number.

77181810741804 is an abundant number, since it is smaller than the sum of its proper divisors (103057863503316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77181810741804 is a wasteful number, since it uses less digits than its factorization.

77181810741804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700590 (or 700588 counting only the distinct ones).

The product of its (nonzero) digits is 2809856, while the sum is 57.

The spelling of 77181810741804 in words is "seventy-seven trillion, one hundred eighty-one billion, eight hundred ten million, seven hundred forty-one thousand, eight hundred four".