671318370 has 24 divisors (see below), whose sum is σ = 1745427996. Its totient is φ = 179018208.

The previous prime is 671318353. The next prime is 671318413. The reversal of 671318370 is 73813176.

It can be written as a sum of positive squares in 2 ways, for example, as 657768609 + 13549761 = 25647^2 + 3681^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3729457 + ... + 3729636.

Almost surely, 2^671318370 is an apocalyptic number.

671318370 is an abundant number, since it is smaller than the sum of its proper divisors (1074109626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671318370 is a wasteful number, since it uses less digits than its factorization.

671318370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7459106 (or 7459103 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 671318370 is about 25909.8122339781. The cubic root of 671318370 is about 875.6075758416.

The spelling of 671318370 in words is "six hundred seventy-one million, three hundred eighteen thousand, three hundred seventy".