67979878908 has 24 divisors (see below), whose sum is σ = 160190212560. Its totient is φ = 22435603200.

The previous prime is 67979878871. The next prime is 67979878909. The reversal of 67979878908 is 80987897976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67979878909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28043293 + ... + 28045716.

It is an arithmetic number, because the mean of its divisors is an integer number (6674592190).

Almost surely, 2^67979878908 is an apocalyptic number.

It is an amenable number.

67979878908 is an abundant number, since it is smaller than the sum of its proper divisors (92210333652).

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

67979878908 is a wasteful number, since it uses less digits than its factorization.

67979878908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56089117 (or 56089115 counting only the distinct ones).

The product of its (nonzero) digits is 768144384, while the sum is 78.

The spelling of 67979878908 in words is "sixty-seven billion, nine hundred seventy-nine million, eight hundred seventy-eight thousand, nine hundred eight".