77061755716077 has 16 divisors (see below), whose sum is σ = 112090312127808. Its totient is φ = 46703892026880.

The previous prime is 77061755716063. The next prime is 77061755716087.

77061755716077 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 77061755716077 - 2¹⁴ = 77061755699693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77061755715999 and 77061755716017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77061755716087) 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, 2858493 + ... + 12739485.

It is an arithmetic number, because the mean of its divisors is an integer number (7005644507988).

Almost surely, 2^{77061755716077} is an apocalyptic number.

It is an amenable number.

77061755716077 is a deficient number, since it is larger than the sum of its proper divisors (35028556411731).

77061755716077 is a wasteful number, since it uses less digits than its factorization.

77061755716077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10117340.

The product of its (nonzero) digits is 105884100, while the sum is 66.

The spelling of 77061755716077 in words is "seventy-seven trillion, sixty-one billion, seven hundred fifty-five million, seven hundred sixteen thousand, seventy-seven".