77044544416563 has 16 divisors (see below), whose sum is σ = 103785798569376. Its totient is φ = 50833167160320.

The previous prime is 77044544416561. The next prime is 77044544416601. The reversal of 77044544416563 is 36561444544077.

It is a happy number.

It is not a de Polignac number, because 77044544416563 - 2¹ = 77044544416561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77044544416497 and 77044544416506.

It is not an unprimeable number, because it can be changed into a prime (77044544416561) 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, 46023145 + ... + 47667797.

It is an arithmetic number, because the mean of its divisors is an integer number (6486612410586).

Almost surely, 2^{77044544416563} is an apocalyptic number.

77044544416563 is a deficient number, since it is larger than the sum of its proper divisors (26741254152813).

77044544416563 is a wasteful number, since it uses less digits than its factorization.

77044544416563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805734.

The product of its (nonzero) digits is 135475200, while the sum is 60.

The spelling of 77044544416563 in words is "seventy-seven trillion, forty-four billion, five hundred forty-four million, four hundred sixteen thousand, five hundred sixty-three".