77728462608801 has 16 divisors (see below), whose sum is σ = 106890963556608. Its totient is φ = 50214300672000.

The previous prime is 77728462608799. The next prime is 77728462608833. The reversal of 77728462608801 is 10880626482777.

It is not a de Polignac number, because 77728462608801 - 2¹ = 77728462608799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77728462608101) 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, 2729023840 + ... + 2729052321.

It is an arithmetic number, because the mean of its divisors is an integer number (6680685222288).

Almost surely, 2^{77728462608801} is an apocalyptic number.

It is an amenable number.

77728462608801 is a deficient number, since it is larger than the sum of its proper divisors (29162500947807).

77728462608801 is a wasteful number, since it uses less digits than its factorization.

77728462608801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458076312.

The product of its (nonzero) digits is 101154816, while the sum is 66.

The spelling of 77728462608801 in words is "seventy-seven trillion, seven hundred twenty-eight billion, four hundred sixty-two million, six hundred eight thousand, eight hundred one".