67685591484 has 72 divisors (see below), whose sum is σ = 196628664960. Its totient is φ = 19230689952.

The previous prime is 67685591483. The next prime is 67685591497. The reversal of 67685591484 is 48419558676.

67685591484 is a `hidden beast` number, since 6 + 7 + 68 + 5 + 5 + 91 + 484 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67685591483) 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 23 ways as a sum of consecutive naturals, for example, 705154 + ... + 795369.

It is an arithmetic number, because the mean of its divisors is an integer number (2730953680).

Almost surely, 2^67685591484 is an apocalyptic number.

It is an amenable number.

67685591484 is an abundant number, since it is smaller than the sum of its proper divisors (128943073476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67685591484 is a wasteful number, since it uses less digits than its factorization.

67685591484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500719 (or 1500714 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 67685591484 in words is "sixty-seven billion, six hundred eighty-five million, five hundred ninety-one thousand, four hundred eighty-four".