67028663047 has 4 divisors (see below), whose sum is σ = 69190878016. Its totient is φ = 64866448080.

The previous prime is 67028662997. The next prime is 67028663063. The reversal of 67028663047 is 74036682076.

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 67028663047 - 2⁷ = 67028662919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67028763047) 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, 1081107438 + ... + 1081107499.

It is an arithmetic number, because the mean of its divisors is an integer number (17297719504).

Almost surely, 2^67028663047 is an apocalyptic number.

67028663047 is a deficient number, since it is larger than the sum of its proper divisors (2162214969).

67028663047 is a wasteful number, since it uses less digits than its factorization.

67028663047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162214968.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 67028663047 in words is "sixty-seven billion, twenty-eight million, six hundred sixty-three thousand, forty-seven".