76836981867 has 4 divisors (see below), whose sum is σ = 102449309160. Its totient is φ = 51224654576.

The previous prime is 76836981857. The next prime is 76836981869. The reversal of 76836981867 is 76818963867.

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 76836981867 - 2²⁴ = 76820204651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76836981869) 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, 12806163642 + ... + 12806163647.

It is an arithmetic number, because the mean of its divisors is an integer number (25612327290).

Almost surely, 2^76836981867 is an apocalyptic number.

76836981867 is a deficient number, since it is larger than the sum of its proper divisors (25612327293).

76836981867 is a wasteful number, since it uses less digits than its factorization.

76836981867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25612327292.

The product of its digits is 146313216, while the sum is 69.

The spelling of 76836981867 in words is "seventy-six billion, eight hundred thirty-six million, nine hundred eighty-one thousand, eight hundred sixty-seven".