67780003678 has 8 divisors (see below), whose sum is σ = 101673392760. Its totient is φ = 33888872760.

The previous prime is 67780003651. The next prime is 67780003727. The reversal of 67780003678 is 87630008776.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487393 + ... + 610828.

It is an arithmetic number, because the mean of its divisors is an integer number (12709174095).

Almost surely, 2^67780003678 is an apocalyptic number.

67780003678 is a deficient number, since it is larger than the sum of its proper divisors (33893389082).

67780003678 is a wasteful number, since it uses less digits than its factorization.

67780003678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129082.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 67780003678 in words is "sixty-seven billion, seven hundred eighty million, three thousand, six hundred seventy-eight".