76685658667 has 4 divisors (see below), whose sum is σ = 77082993880. Its totient is φ = 76288323456.

The previous prime is 76685658631. The next prime is 76685658671.

76685658667 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 76685658667 - 2¹⁵ = 76685625899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76685658596 and 76685658605.

It is not an unprimeable number, because it can be changed into a prime (76685668667) 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, 198667317 + ... + 198667702.

It is an arithmetic number, because the mean of its divisors is an integer number (19270748470).

Almost surely, 2^76685658667 is an apocalyptic number.

76685658667 is a deficient number, since it is larger than the sum of its proper divisors (397335213).

76685658667 is a wasteful number, since it uses less digits than its factorization.

76685658667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397335212.

The product of its digits is 609638400, while the sum is 70.

The spelling of 76685658667 in words is "seventy-six billion, six hundred eighty-five million, six hundred fifty-eight thousand, six hundred sixty-seven".