680526345 has 8 divisors (see below), whose sum is σ = 1088842176. Its totient is φ = 362947376.

The previous prime is 680526289. The next prime is 680526373. The reversal of 680526345 is 543625086.

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

It is a cyclic number.

It is not a de Polignac number, because 680526345 - 2¹⁵ = 680493577 is a prime.

It is a super-2 number, since 2×680526345² = 926232212478118050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22684197 + ... + 22684226.

It is an arithmetic number, because the mean of its divisors is an integer number (136105272).

Almost surely, 2^680526345 is an apocalyptic number.

It is an amenable number.

680526345 is a deficient number, since it is larger than the sum of its proper divisors (408315831).

680526345 is a wasteful number, since it uses less digits than its factorization.

680526345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45368431.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 680526345 is about 26086.8998733081. The cubic root of 680526345 is about 879.5927631047.

The spelling of 680526345 in words is "six hundred eighty million, five hundred twenty-six thousand, three hundred forty-five".