67393841772 has 18 divisors (see below), whose sum is σ = 157254395844. Its totient is φ = 22464314160.

The previous prime is 67393841747. The next prime is 67393841803. The reversal of 67393841772 is 27714839376.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 861822 + ... + 936762.

Almost surely, 2^67393841772 is an apocalyptic number.

It is an amenable number.

67393841772 is an abundant number, since it is smaller than the sum of its proper divisors (89860554072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67393841772 is an frugal number, since it uses more digits than its factorization.

67393841772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149889 (or 74946 counting only the distinct ones).

The product of its digits is 10668672, while the sum is 57.

The spelling of 67393841772 in words is "sixty-seven billion, three hundred ninety-three million, eight hundred forty-one thousand, seven hundred seventy-two".