67778648102 has 8 divisors (see below), whose sum is σ = 110910515112. Its totient is φ = 30808476400.

The previous prime is 67778648059. The next prime is 67778648123. The reversal of 67778648102 is 20184687776.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540423799 + ... + 1540423842.

It is an arithmetic number, because the mean of its divisors is an integer number (13863814389).

Almost surely, 2^67778648102 is an apocalyptic number.

67778648102 is a deficient number, since it is larger than the sum of its proper divisors (43131867010).

67778648102 is a wasteful number, since it uses less digits than its factorization.

67778648102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080847654.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 67778648102 in words is "sixty-seven billion, seven hundred seventy-eight million, six hundred forty-eight thousand, one hundred two".