680261378 has 8 divisors (see below), whose sum is σ = 1020571968. Its totient is φ = 340070724.

The previous prime is 680261371. The next prime is 680261423. The reversal of 680261378 is 873162086.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (680261371) 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, 14126 + ... + 39497.

It is an arithmetic number, because the mean of its divisors is an integer number (127571496).

Almost surely, 2^680261378 is an apocalyptic number.

680261378 is a deficient number, since it is larger than the sum of its proper divisors (340310590).

680261378 is a wasteful number, since it uses less digits than its factorization.

680261378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59968.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 680261378 is about 26081.8208336765. The cubic root of 680261378 is about 879.4785900522.

The spelling of 680261378 in words is "six hundred eighty million, two hundred sixty-one thousand, three hundred seventy-eight".