678125258818 has 32 divisors (see below), whose sum is σ = 1165413300480. Its totient is φ = 289897202880.

The previous prime is 678125258813. The next prime is 678125258891. The reversal of 678125258818 is 818852521876.

It is not an unprimeable number, because it can be changed into a prime (678125258813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34979488 + ... + 34998868.

It is an arithmetic number, because the mean of its divisors is an integer number (36419165640).

Almost surely, 2^678125258818 is an apocalyptic number.

678125258818 is a deficient number, since it is larger than the sum of its proper divisors (487288041662).

678125258818 is a wasteful number, since it uses less digits than its factorization.

678125258818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25522.

The product of its digits is 17203200, while the sum is 61.

The spelling of 678125258818 in words is "six hundred seventy-eight billion, one hundred twenty-five million, two hundred fifty-eight thousand, eight hundred eighteen".