680144615 has 16 divisors (see below), whose sum is σ = 896486400. Its totient is φ = 493064352.

The previous prime is 680144611. The next prime is 680144623. The reversal of 680144615 is 516441086.

680144615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 680144615 - 2² = 680144611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680144611) 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, 153455 + ... + 157824.

It is an arithmetic number, because the mean of its divisors is an integer number (56030400).

Almost surely, 2^680144615 is an apocalyptic number.

680144615 is a deficient number, since it is larger than the sum of its proper divisors (216341785).

680144615 is a wasteful number, since it uses less digits than its factorization.

680144615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311326.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 680144615 is about 26079.5823394471. The cubic root of 680144615 is about 879.4282680055.

The spelling of 680144615 in words is "six hundred eighty million, one hundred forty-four thousand, six hundred fifteen".