67377542221 has 8 divisors (see below), whose sum is σ = 73534119264. Its totient is φ = 61226189520.

The previous prime is 67377542209. The next prime is 67377542237. The reversal of 67377542221 is 12224577376.

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 67377542221 - 2¹⁹ = 67377017933 is a prime.

It is a super-2 number, since 2×67377542221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67377542291) 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, 1279090 + ... + 1330723.

It is an arithmetic number, because the mean of its divisors is an integer number (9191764908).

Almost surely, 2^67377542221 is an apocalyptic number.

It is an amenable number.

67377542221 is a deficient number, since it is larger than the sum of its proper divisors (6156577043).

67377542221 is a wasteful number, since it uses less digits than its factorization.

67377542221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612171.

The product of its digits is 987840, while the sum is 46.

The spelling of 67377542221 in words is "sixty-seven billion, three hundred seventy-seven million, five hundred forty-two thousand, two hundred twenty-one".