67381111108 has 6 divisors (see below), whose sum is σ = 117916944446. Its totient is φ = 33690555552.

The previous prime is 67381111097. The next prime is 67381111151. The reversal of 67381111108 is 80111118376.

It can be written as a sum of positive squares in only one way, i.e., 36153980164 + 31227130944 = 190142^2 + 176712^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8422638885 + ... + 8422638892.

Almost surely, 2^67381111108 is an apocalyptic number.

It is an amenable number.

67381111108 is a deficient number, since it is larger than the sum of its proper divisors (50535833338).

67381111108 is a wasteful number, since it uses less digits than its factorization.

67381111108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16845277781 (or 16845277779 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 37.

The spelling of 67381111108 in words is "sixty-seven billion, three hundred eighty-one million, one hundred eleven thousand, one hundred eight".