67057731117644 has 12 divisors (see below), whose sum is σ = 119003860857168. Its totient is φ = 33056628015600.

The previous prime is 67057731117613. The next prime is 67057731117647. The reversal of 67057731117644 is 44671113775076.

67057731117644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67057731117644² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67057731117647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118059385487 + ... + 118059386054.

It is an arithmetic number, because the mean of its divisors is an integer number (9916988404764).

Almost surely, 2^{67057731117644} is an apocalyptic number.

It is an amenable number.

67057731117644 is a deficient number, since it is larger than the sum of its proper divisors (51946129739524).

67057731117644 is a wasteful number, since it uses less digits than its factorization.

67057731117644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236118771616 (or 236118771614 counting only the distinct ones).

The product of its (nonzero) digits is 20744640, while the sum is 59.

The spelling of 67057731117644 in words is "sixty-seven trillion, fifty-seven billion, seven hundred thirty-one million, one hundred seventeen thousand, six hundred forty-four".