678067125067 has 4 divisors (see below), whose sum is σ = 683406236416. Its totient is φ = 672728013720.

The previous prime is 678067125061. The next prime is 678067125091. The reversal of 678067125067 is 760521760876.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 678067125067 - 2¹⁹ = 678066600779 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 678067124999 and 678067125017.

It is not an unprimeable number, because it can be changed into a prime (678067125061) 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, 2669555484 + ... + 2669555737.

It is an arithmetic number, because the mean of its divisors is an integer number (170851559104).

Almost surely, 2^678067125067 is an apocalyptic number.

678067125067 is a deficient number, since it is larger than the sum of its proper divisors (5339111349).

678067125067 is a wasteful number, since it uses less digits than its factorization.

678067125067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339111348.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 678067125067 in words is "six hundred seventy-eight billion, sixty-seven million, one hundred twenty-five thousand, sixty-seven".