76688688667 has 4 divisors (see below), whose sum is σ = 76724476480. Its totient is φ = 76652900856.

The previous prime is 76688688623. The next prime is 76688688673.

76688688667 is nontrivially palindromic in base 10.

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 76688688667 - 2¹¹ = 76688686619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76688688593 and 76688688602.

It is not an unprimeable number, because it can be changed into a prime (76688682667) 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, 17890692 + ... + 17894977.

It is an arithmetic number, because the mean of its divisors is an integer number (19181119120).

Almost surely, 2^76688688667 is an apocalyptic number.

76688688667 is a deficient number, since it is larger than the sum of its proper divisors (35787813).

76688688667 is a wasteful number, since it uses less digits than its factorization.

76688688667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35787812.

The product of its digits is 1560674304, while the sum is 76.

The spelling of 76688688667 in words is "seventy-six billion, six hundred eighty-eight million, six hundred eighty-eight thousand, six hundred sixty-seven".