67979897976 has 64 divisors (see below), whose sum is σ = 183775495680. Its totient is φ = 20873254400.

The previous prime is 67979897971. The next prime is 67979898029.

It is a happy number.

67979897976 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67979897971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1753350 + ... + 1791701.

It is an arithmetic number, because the mean of its divisors is an integer number (2871492120).

Almost surely, 2^67979897976 is an apocalyptic number.

It is an amenable number.

67979897976 is an abundant number, since it is smaller than the sum of its proper divisors (115795597704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67979897976 is a wasteful number, since it uses less digits than its factorization.

67979897976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545124 (or 3545120 counting only the distinct ones).

The product of its digits is 4536852768, while the sum is 84.

The spelling of 67979897976 in words is "sixty-seven billion, nine hundred seventy-nine million, eight hundred ninety-seven thousand, nine hundred seventy-six".