77546708884 has 12 divisors (see below), whose sum is σ = 135737550900. Its totient is φ = 38764551488.

The previous prime is 77546708881. The next prime is 77546708923. The reversal of 77546708884 is 48880764577.

It can be written as a sum of positive squares in 2 ways, for example, as 24655908484 + 52890800400 = 157022^2 + 229980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77546708881) 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 in 3 ways as a sum of consecutive naturals, for example, 2180899 + ... + 2216170.

It is an arithmetic number, because the mean of its divisors is an integer number (11311462575).

Almost surely, 2^77546708884 is an apocalyptic number.

It is an amenable number.

77546708884 is a deficient number, since it is larger than the sum of its proper divisors (58190842016).

77546708884 is a wasteful number, since it uses less digits than its factorization.

77546708884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401482 (or 4401480 counting only the distinct ones).

The product of its (nonzero) digits is 84295680, while the sum is 64.

The spelling of 77546708884 in words is "seventy-seven billion, five hundred forty-six million, seven hundred eight thousand, eight hundred eighty-four".