671717474148 has 96 divisors (see below), whose sum is σ = 1835527292928. Its totient is φ = 187177939200.

The previous prime is 671717474143. The next prime is 671717474159. The reversal of 671717474148 is 841474717176.

It is not an unprimeable number, because it can be changed into a prime (671717474143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11235511 + ... + 11295137.

It is an arithmetic number, because the mean of its divisors is an integer number (19120075968).

Almost surely, 2^671717474148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671717474148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (917763646464).

671717474148 is an abundant number, since it is smaller than the sum of its proper divisors (1163809818780).

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

671717474148 is a wasteful number, since it uses less digits than its factorization.

671717474148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62953 (or 62951 counting only the distinct ones).

The product of its digits is 7375872, while the sum is 57.

The spelling of 671717474148 in words is "six hundred seventy-one billion, seven hundred seventeen million, four hundred seventy-four thousand, one hundred forty-eight".