67976021344 has 96 divisors (see below), whose sum is σ = 172603872000. Its totient is φ = 25570890240.

The previous prime is 67976021339. The next prime is 67976021359. The reversal of 67976021344 is 44312067976.

It is a super-4 number, since 4×67976021344⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404194 + ... + 547105.

It is an arithmetic number, because the mean of its divisors is an integer number (1797957000).

Almost surely, 2^67976021344 is an apocalyptic number.

It is an amenable number.

67976021344 is an abundant number, since it is smaller than the sum of its proper divisors (104627850656).

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

67976021344 is a wasteful number, since it uses less digits than its factorization.

67976021344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951356 (or 951348 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 67976021344 in words is "sixty-seven billion, nine hundred seventy-six million, twenty-one thousand, three hundred forty-four".