67773270890 has 16 divisors (see below), whose sum is σ = 131375879208. Its totient is φ = 25023976896.

The previous prime is 67773270857. The next prime is 67773270893. The reversal of 67773270890 is 9807237776.

It is a Cunningham number, because it is equal to 260333²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 24398127601 + 43375143289 = 156199^2 + 208267^2 .

It is not an unprimeable number, because it can be changed into a prime (67773270893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260666297 + ... + 260666556.

Almost surely, 2^67773270890 is an apocalyptic number.

67773270890 is a deficient number, since it is larger than the sum of its proper divisors (63602608318).

67773270890 is a wasteful number, since it uses less digits than its factorization.

67773270890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521332873.

The product of its (nonzero) digits is 6223392, while the sum is 56.

The spelling of 67773270890 in words is "sixty-seven billion, seven hundred seventy-three million, two hundred seventy thousand, eight hundred ninety".