67989774992 has 20 divisors (see below), whose sum is σ = 132538354800. Its totient is φ = 33786328608.

The previous prime is 67989774943. The next prime is 67989775001. The reversal of 67989774992 is 29947798976.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13032242 + ... + 13037457.

It is an arithmetic number, because the mean of its divisors is an integer number (6626917740).

Almost surely, 2^67989774992 is an apocalyptic number.

It is an amenable number.

67989774992 is a deficient number, since it is larger than the sum of its proper divisors (64548579808).

67989774992 is a wasteful number, since it uses less digits than its factorization.

67989774992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26069870 (or 26069864 counting only the distinct ones).

The product of its digits is 864162432, while the sum is 77.

The spelling of 67989774992 in words is "sixty-seven billion, nine hundred eighty-nine million, seven hundred seventy-four thousand, nine hundred ninety-two".