76664585673 has 64 divisors (see below), whose sum is σ = 125955809280. Its totient is φ = 45780297984.

The previous prime is 76664585651. The next prime is 76664585677. The reversal of 76664585673 is 37658546667.

It is not a de Polignac number, because 76664585673 - 2⁶ = 76664585609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76664585673.

It is not an unprimeable number, because it can be changed into a prime (76664585677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4966315 + ... + 4981727.

It is an arithmetic number, because the mean of its divisors is an integer number (1968059520).

Almost surely, 2^76664585673 is an apocalyptic number.

It is an amenable number.

76664585673 is a deficient number, since it is larger than the sum of its proper divisors (49291223607).

76664585673 is a wasteful number, since it uses less digits than its factorization.

76664585673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15855 (or 15849 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 63.

The spelling of 76664585673 in words is "seventy-six billion, six hundred sixty-four million, five hundred eighty-five thousand, six hundred seventy-three".