67121610976 has 48 divisors (see below), whose sum is σ = 157589881344. Its totient is φ = 27515689344.

The previous prime is 67121610949. The next prime is 67121611033. The reversal of 67121610976 is 67901612176.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6508980 + ... + 6519283.

It is an arithmetic number, because the mean of its divisors is an integer number (3283122528).

Almost surely, 2^67121610976 is an apocalyptic number.

It is an amenable number.

67121610976 is an abundant number, since it is smaller than the sum of its proper divisors (90468270368).

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

67121610976 is a wasteful number, since it uses less digits than its factorization.

67121610976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13028303 (or 13028295 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 67121610976 in words is "sixty-seven billion, one hundred twenty-one million, six hundred ten thousand, nine hundred seventy-six".