67391347874 has 12 divisors (see below), whose sum is σ = 106687411974. Its totient is φ = 31922217072.

The previous prime is 67391347873. The next prime is 67391347889. The reversal of 67391347874 is 47874319376.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45162625225 + 22228722649 = 212515^2 + 149093^2 .

It is not an unprimeable number, because it can be changed into a prime (67391347873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46669187 + ... + 46670630.

Almost surely, 2^67391347874 is an apocalyptic number.

67391347874 is a deficient number, since it is larger than the sum of its proper divisors (39296064100).

67391347874 is a wasteful number, since it uses less digits than its factorization.

67391347874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93339857 (or 93339838 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 59.

The spelling of 67391347874 in words is "sixty-seven billion, three hundred ninety-one million, three hundred forty-seven thousand, eight hundred seventy-four".