67810420784 has 10 divisors (see below), whose sum is σ = 131382690300. Its totient is φ = 33905210384.

The previous prime is 67810420693. The next prime is 67810420793. The reversal of 67810420784 is 48702401876.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2119075634 + ... + 2119075665.

It is an arithmetic number, because the mean of its divisors is an integer number (13138269030).

Almost surely, 2^67810420784 is an apocalyptic number.

It is an amenable number.

67810420784 is a deficient number, since it is larger than the sum of its proper divisors (63572269516).

67810420784 is a wasteful number, since it uses less digits than its factorization.

67810420784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238151307 (or 4238151301 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 67810420784 in words is "sixty-seven billion, eight hundred ten million, four hundred twenty thousand, seven hundred eighty-four".