671437408204 has 24 divisors (see below), whose sum is σ = 1215597252240. Its totient is φ = 324125126976.

The previous prime is 671437408171. The next prime is 671437408207. The reversal of 671437408204 is 402804734176.

671437408204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (671437408207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218014 + ... + 2502490.

It is an arithmetic number, because the mean of its divisors is an integer number (50649885510).

Almost surely, 2^671437408204 is an apocalyptic number.

It is an amenable number.

671437408204 is a deficient number, since it is larger than the sum of its proper divisors (544159844036).

671437408204 is a wasteful number, since it uses less digits than its factorization.

671437408204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304857 (or 304855 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 671437408204 in words is "six hundred seventy-one billion, four hundred thirty-seven million, four hundred eight thousand, two hundred four".