67987373922 has 128 divisors (see below), whose sum is σ = 172505088000. Its totient is φ = 19675068480.

The previous prime is 67987373899. The next prime is 67987373989. The reversal of 67987373922 is 22937378976.

It is a self number, because there is not a number n which added to its sum of digits gives 67987373922.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1835647 + ... + 1872317.

It is an arithmetic number, because the mean of its divisors is an integer number (1347696000).

Almost surely, 2^67987373922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67987373922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86252544000).

67987373922 is an abundant number, since it is smaller than the sum of its proper divisors (104517714078).

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

67987373922 is a wasteful number, since it uses less digits than its factorization.

67987373922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36853 (or 36847 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 63.

The spelling of 67987373922 in words is "sixty-seven billion, nine hundred eighty-seven million, three hundred seventy-three thousand, nine hundred twenty-two".