67773866806 has 4 divisors (see below), whose sum is σ = 101660800212. Its totient is φ = 33886933402.

The previous prime is 67773866801. The next prime is 67773866819. The reversal of 67773866806 is 60866837776.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67773866801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16943466700 + ... + 16943466703.

It is an arithmetic number, because the mean of its divisors is an integer number (25415200053).

Almost surely, 2^67773866806 is an apocalyptic number.

67773866806 is a deficient number, since it is larger than the sum of its proper divisors (33886933406).

67773866806 is a wasteful number, since it uses less digits than its factorization.

67773866806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33886933405.

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 67773866806 in words is "sixty-seven billion, seven hundred seventy-three million, eight hundred sixty-six thousand, eight hundred six".