67243535085 has 16 divisors (see below), whose sum is σ = 109619650944. Its totient is φ = 35186553792.

The previous prime is 67243535041. The next prime is 67243535089. The reversal of 67243535085 is 58053534276.

It is a happy number.

It is not a de Polignac number, because 67243535085 - 2⁷ = 67243534957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67243535089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42290737 + ... + 42292326.

It is an arithmetic number, because the mean of its divisors is an integer number (6851228184).

Almost surely, 2^67243535085 is an apocalyptic number.

It is an amenable number.

67243535085 is a deficient number, since it is larger than the sum of its proper divisors (42376115859).

67243535085 is a wasteful number, since it uses less digits than its factorization.

67243535085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84583124.

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 67243535085 in words is "sixty-seven billion, two hundred forty-three million, five hundred thirty-five thousand, eighty-five".