77763445342728 has 32 divisors (see below), whose sum is σ = 194872595752800. Its totient is φ = 25859284128128.

The previous prime is 77763445342637. The next prime is 77763445342757. The reversal of 77763445342728 is 82724354436777.

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 7 ways as a sum of consecutive naturals, for example, 3866509701 + ... + 3866529812.

It is an arithmetic number, because the mean of its divisors is an integer number (6089768617275).

Almost surely, 2^{77763445342728} is an apocalyptic number.

It is an amenable number.

77763445342728 is an abundant number, since it is smaller than the sum of its proper divisors (117109150410072).

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

77763445342728 is a wasteful number, since it uses less digits than its factorization.

77763445342728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733039941 (or 7733039937 counting only the distinct ones).

The product of its digits is 1327656960, while the sum is 69.

The spelling of 77763445342728 in words is "seventy-seven trillion, seven hundred sixty-three billion, four hundred forty-five million, three hundred forty-two thousand, seven hundred twenty-eight".