67778462083725 has 36 divisors (see below), whose sum is σ = 122100483518676. Its totient is φ = 35939562147840.

The previous prime is 67778462083721. The next prime is 67778462083769. The reversal of 67778462083725 is 52738026487776.

67778462083725 is a `hidden beast` number, since 6 + 7 + 7 + 7 + 8 + 46 + 208 + 372 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 451366298244 + 67327095785481 = 671838^2 + 8205309^2 .

It is not a de Polignac number, because 67778462083725 - 2² = 67778462083721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67778462083721) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 870590004 + ... + 870667853.

It is an arithmetic number, because the mean of its divisors is an integer number (3391680097741).

Almost surely, 2^{67778462083725} is an apocalyptic number.

It is an amenable number.

67778462083725 is a deficient number, since it is larger than the sum of its proper divisors (54322021434951).

67778462083725 is a wasteful number, since it uses less digits than its factorization.

67778462083725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741258046 (or 1741258038 counting only the distinct ones).

The product of its (nonzero) digits is 1327656960, while the sum is 72.

The spelling of 67778462083725 in words is "sixty-seven trillion, seven hundred seventy-eight billion, four hundred sixty-two million, eighty-three thousand, seven hundred twenty-five".