67680503447820 has 48 divisors (see below), whose sum is σ = 191243991412320. Its totient is φ = 17882555037696.

The previous prime is 67680503447813. The next prime is 67680503447903. The reversal of 67680503447820 is 2874430508676.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5174343877 + ... + 5174356956.

It is an arithmetic number, because the mean of its divisors is an integer number (3984249821090).

Almost surely, 2^{67680503447820} is an apocalyptic number.

67680503447820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67680503447820 is an abundant number, since it is smaller than the sum of its proper divisors (123563487964500).

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

67680503447820 is a wasteful number, since it uses less digits than its factorization.

67680503447820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10348700954 (or 10348700952 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 60.

The spelling of 67680503447820 in words is "sixty-seven trillion, six hundred eighty billion, five hundred three million, four hundred forty-seven thousand, eight hundred twenty".