67625811128052 has 18 divisors (see below), whose sum is σ = 170943022573778. Its totient is φ = 22541937042672.

The previous prime is 67625811128047. The next prime is 67625811128063. The reversal of 67625811128052 is 25082111852676.

67625811128052 is a `hidden beast` number, since 6 + 7 + 6 + 2 + 581 + 1 + 1 + 2 + 8 + 0 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49736261131236 + 17889549996816 = 7052394^2 + 4229604^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 67625811128052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 939247376743 + ... + 939247376814.

Almost surely, 2^{67625811128052} is an apocalyptic number.

It is an amenable number.

67625811128052 is an abundant number, since it is smaller than the sum of its proper divisors (103317211445726).

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

67625811128052 is a wasteful number, since it uses less digits than its factorization.

67625811128052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878494753567 (or 1878494753562 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 67625811128052 in words is "sixty-seven trillion, six hundred twenty-five billion, eight hundred eleven million, one hundred twenty-eight thousand, fifty-two".