67716770027 has 4 divisors (see below), whose sum is σ = 69157552416. Its totient is φ = 66275987640.

The previous prime is 67716769961. The next prime is 67716770029. The reversal of 67716770027 is 72007761776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67716770027 - 2¹⁶ = 67716704491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67716770029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720391124 + ... + 720391217.

It is an arithmetic number, because the mean of its divisors is an integer number (17289388104).

Almost surely, 2^67716770027 is an apocalyptic number.

67716770027 is a deficient number, since it is larger than the sum of its proper divisors (1440782389).

67716770027 is a wasteful number, since it uses less digits than its factorization.

67716770027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440782388.

The product of its (nonzero) digits is 1210104, while the sum is 50.

The spelling of 67716770027 in words is "sixty-seven billion, seven hundred sixteen million, seven hundred seventy thousand, twenty-seven".