67373472689 has 4 divisors (see below), whose sum is σ = 67375498224. Its totient is φ = 67371447156.

The previous prime is 67373472623. The next prime is 67373472707. The reversal of 67373472689 is 98627437376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67373472689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67373472619) 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, 962027 + ... + 1029680.

It is an arithmetic number, because the mean of its divisors is an integer number (16843874556).

Almost surely, 2^67373472689 is an apocalyptic number.

It is an amenable number.

67373472689 is a deficient number, since it is larger than the sum of its proper divisors (2025535).

67373472689 is a wasteful number, since it uses less digits than its factorization.

67373472689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025534.

The product of its digits is 64012032, while the sum is 62.

The spelling of 67373472689 in words is "sixty-seven billion, three hundred seventy-three million, four hundred seventy-two thousand, six hundred eighty-nine".