77362704077 has 4 divisors (see below), whose sum is σ = 77363570460. Its totient is φ = 77361837696.

The previous prime is 77362704059. The next prime is 77362704101. The reversal of 77362704077 is 77040726377.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 18147861796 + 59214842281 = 134714^2 + 243341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77362704077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77362704047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281558 + ... + 483735.

It is an arithmetic number, because the mean of its divisors is an integer number (19340892615).

Almost surely, 2^77362704077 is an apocalyptic number.

It is an amenable number.

77362704077 is a deficient number, since it is larger than the sum of its proper divisors (866383).

77362704077 is a wasteful number, since it uses less digits than its factorization.

77362704077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866382.

The product of its (nonzero) digits is 2420208, while the sum is 50.

The spelling of 77362704077 in words is "seventy-seven billion, three hundred sixty-two million, seven hundred four thousand, seventy-seven".