77738077180711 has 4 divisors (see below), whose sum is σ = 80418700531800. Its totient is φ = 75057453829624.

The previous prime is 77738077180681. The next prime is 77738077180723. The reversal of 77738077180711 is 11708177083777.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77738077180711 - 2¹³ = 77738077172519 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 (77738077180811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340311675501 + ... + 1340311675558.

It is an arithmetic number, because the mean of its divisors is an integer number (20104675132950).

Almost surely, 2^{77738077180711} is an apocalyptic number.

77738077180711 is a deficient number, since it is larger than the sum of its proper divisors (2680623351089).

77738077180711 is a wasteful number, since it uses less digits than its factorization.

77738077180711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680623351088.

The product of its (nonzero) digits is 22588608, while the sum is 64.

The spelling of 77738077180711 in words is "seventy-seven trillion, seven hundred thirty-eight billion, seventy-seven million, one hundred eighty thousand, seven hundred eleven".