671223724860 has 96 divisors (see below), whose sum is σ = 2039934984192. Its totient is φ = 163923298560.

The previous prime is 671223724849. The next prime is 671223724889. The reversal of 671223724860 is 68427322176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3288906 + ... + 3487025.

It is an arithmetic number, because the mean of its divisors is an integer number (21249322752).

Almost surely, 2^671223724860 is an apocalyptic number.

671223724860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671223724860 is an abundant number, since it is smaller than the sum of its proper divisors (1368711259332).

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

671223724860 is a wasteful number, since it uses less digits than its factorization.

671223724860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776083 (or 6776081 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 671223724860 in words is "six hundred seventy-one billion, two hundred twenty-three million, seven hundred twenty-four thousand, eight hundred sixty".