67031222428 has 12 divisors (see below), whose sum is σ = 124204912272. Its totient is φ = 31544104640.

The previous prime is 67031222351. The next prime is 67031222429. The reversal of 67031222428 is 82422213076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67031222429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492876568 + ... + 492876703.

It is an arithmetic number, because the mean of its divisors is an integer number (10350409356).

Almost surely, 2^67031222428 is an apocalyptic number.

67031222428 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

67031222428 is a deficient number, since it is larger than the sum of its proper divisors (57173689844).

67031222428 is a wasteful number, since it uses less digits than its factorization.

67031222428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985753292 (or 985753290 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 67031222428 in words is "sixty-seven billion, thirty-one million, two hundred twenty-two thousand, four hundred twenty-eight".