67379721289 has 8 divisors (see below), whose sum is σ = 72348069888. Its totient is φ = 62523021120.

The previous prime is 67379721287. The next prime is 67379721347. The reversal of 67379721289 is 98212797376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67379721289 - 2¹ = 67379721287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67379721287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27910857 + ... + 27913270.

It is an arithmetic number, because the mean of its divisors is an integer number (9043508736).

Almost surely, 2^67379721289 is an apocalyptic number.

It is an amenable number.

67379721289 is a deficient number, since it is larger than the sum of its proper divisors (4968348599).

67379721289 is a wasteful number, since it uses less digits than its factorization.

67379721289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55824215.

The product of its digits is 16003008, while the sum is 61.

The spelling of 67379721289 in words is "sixty-seven billion, three hundred seventy-nine million, seven hundred twenty-one thousand, two hundred eighty-nine".