77700080776 has 32 divisors (see below), whose sum is σ = 151226570880. Its totient is φ = 37400097600.

The previous prime is 77700080749. The next prime is 77700080797. The reversal of 77700080776 is 67708000777.

It is an unprimeable number.

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, 1670910 + ... + 1716781.

It is an arithmetic number, because the mean of its divisors is an integer number (4725830340).

Almost surely, 2^77700080776 is an apocalyptic number.

It is an amenable number.

77700080776 is a deficient number, since it is larger than the sum of its proper divisors (73526490104).

77700080776 is a wasteful number, since it uses less digits than its factorization.

77700080776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387805 (or 3387801 counting only the distinct ones).

The product of its (nonzero) digits is 806736, while the sum is 49.

The spelling of 77700080776 in words is "seventy-seven billion, seven hundred million, eighty thousand, seven hundred seventy-six".