67246320961 has 8 divisors (see below), whose sum is σ = 67564341000. Its totient is φ = 66929049600.

The previous prime is 67246320959. The next prime is 67246320979. The reversal of 67246320961 is 16902364276.

It can be written as a sum of positive squares in 4 ways, for example, as 12890196225 + 54356124736 = 113535^2 + 233144^2 .

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 67246320961 - 2¹ = 67246320959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67246320901) 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, 6696 + ... + 366793.

It is an arithmetic number, because the mean of its divisors is an integer number (8445542625).

Almost surely, 2^67246320961 is an apocalyptic number.

It is an amenable number.

67246320961 is a deficient number, since it is larger than the sum of its proper divisors (318020039).

67246320961 is a wasteful number, since it uses less digits than its factorization.

67246320961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374339.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 67246320961 in words is "sixty-seven billion, two hundred forty-six million, three hundred twenty thousand, nine hundred sixty-one".