671694041882 has 8 divisors (see below), whose sum is σ = 1009745749236. Its totient is φ = 335112125472.

The previous prime is 671694041861. The next prime is 671694041891. The reversal of 671694041882 is 288140496176.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 549438220081 + 122255821801 = 741241^2 + 349651^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367446593 + ... + 367448420.

Almost surely, 2^671694041882 is an apocalyptic number.

671694041882 is a deficient number, since it is larger than the sum of its proper divisors (338051707354).

671694041882 is a wasteful number, since it uses less digits than its factorization.

671694041882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734895472.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 671694041882 in words is "six hundred seventy-one billion, six hundred ninety-four million, forty-one thousand, eight hundred eighty-two".