67814641876 has 6 divisors (see below), whose sum is σ = 118675623290. Its totient is φ = 33907320936.

The previous prime is 67814641861. The next prime is 67814641879.

It is a happy number.

67814641876 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 52518888900 + 15295752976 = 229170^2 + 123676^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67814641876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67814641879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8476830231 + ... + 8476830238.

Almost surely, 2^67814641876 is an apocalyptic number.

It is an amenable number.

67814641876 is a deficient number, since it is larger than the sum of its proper divisors (50860981414).

67814641876 is a wasteful number, since it uses less digits than its factorization.

67814641876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16953660473 (or 16953660471 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 58.

The spelling of 67814641876 in words is "sixty-seven billion, eight hundred fourteen million, six hundred forty-one thousand, eight hundred seventy-six".