76666670671 has 4 divisors (see below), whose sum is σ = 79310349000. Its totient is φ = 74022992344.

The previous prime is 76666670627. The next prime is 76666670693. The reversal of 76666670671 is 17607666667.

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 76666670671 - 2¹⁵ = 76666637903 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 (76666670611) 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 3 ways as a sum of consecutive naturals, for example, 1321839121 + ... + 1321839178.

It is an arithmetic number, because the mean of its divisors is an integer number (19827587250).

Almost surely, 2^76666670671 is an apocalyptic number.

76666670671 is a deficient number, since it is larger than the sum of its proper divisors (2643678329).

76666670671 is a wasteful number, since it uses less digits than its factorization.

76666670671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643678328.

The product of its (nonzero) digits is 16003008, while the sum is 58.

The spelling of 76666670671 in words is "seventy-six billion, six hundred sixty-six million, six hundred seventy thousand, six hundred seventy-one".