67646246013 has 32 divisors (see below), whose sum is σ = 105240134400. Its totient is φ = 42861918528.

The previous prime is 67646246009. The next prime is 67646246023. The reversal of 67646246013 is 31064264676.

It is a happy number.

67646246013 is a `hidden beast` number, since 6 + 7 + 6 + 4 + 624 + 6 + 0 + 13 = 666.

It is not a de Polignac number, because 67646246013 - 2² = 67646246009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67646246013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67646246023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249418 + ... + 444411.

It is an arithmetic number, because the mean of its divisors is an integer number (3288754200).

Almost surely, 2^67646246013 is an apocalyptic number.

It is an amenable number.

67646246013 is a deficient number, since it is larger than the sum of its proper divisors (37593888387).

67646246013 is a wasteful number, since it uses less digits than its factorization.

67646246013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694018 (or 694012 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 67646246013 in words is "sixty-seven billion, six hundred forty-six million, two hundred forty-six thousand, thirteen".