77757783305028 has 48 divisors (see below), whose sum is σ = 182591727595200. Its totient is φ = 25754330111104.

The previous prime is 77757783305021. The next prime is 77757783305093. The reversal of 77757783305028 is 82050338775777.

It is not an unprimeable number, because it can be changed into a prime (77757783305021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19448478 + ... + 23103221.

It is an arithmetic number, because the mean of its divisors is an integer number (3803994324900).

Almost surely, 2^{77757783305028} is an apocalyptic number.

It is an amenable number.

77757783305028 is an abundant number, since it is smaller than the sum of its proper divisors (104833944290172).

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

77757783305028 is a wasteful number, since it uses less digits than its factorization.

77757783305028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42552676 (or 42552674 counting only the distinct ones).

The product of its (nonzero) digits is 484041600, while the sum is 69.

The spelling of 77757783305028 in words is "seventy-seven trillion, seven hundred fifty-seven billion, seven hundred eighty-three million, three hundred five thousand, twenty-eight".