67690841768 has 16 divisors (see below), whose sum is σ = 138458540160. Its totient is φ = 30768564400.

The previous prime is 67690841767. The next prime is 67690841797. The reversal of 67690841768 is 86714809676.

It is a self number, because there is not a number n which added to its sum of digits gives 67690841768.

It is not an unprimeable number, because it can be changed into a prime (67690841767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384606968 + ... + 384607143.

It is an arithmetic number, because the mean of its divisors is an integer number (8653658760).

Almost surely, 2^67690841768 is an apocalyptic number.

It is an amenable number.

67690841768 is an abundant number, since it is smaller than the sum of its proper divisors (70767698392).

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

67690841768 is a wasteful number, since it uses less digits than its factorization.

67690841768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769214128 (or 769214124 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 67690841768 in words is "sixty-seven billion, six hundred ninety million, eight hundred forty-one thousand, seven hundred sixty-eight".