671288386552 has 32 divisors (see below), whose sum is σ = 1438513261920. Its totient is φ = 287687393280.

The previous prime is 671288386481. The next prime is 671288386591. The reversal of 671288386552 is 255683882176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2311288 + ... + 2585464.

It is an arithmetic number, because the mean of its divisors is an integer number (44953539435).

Almost surely, 2^671288386552 is an apocalyptic number.

It is an amenable number.

671288386552 is an abundant number, since it is smaller than the sum of its proper divisors (767224875368).

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

671288386552 is a wasteful number, since it uses less digits than its factorization.

671288386552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317911 (or 317907 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 61.

The spelling of 671288386552 in words is "six hundred seventy-one billion, two hundred eighty-eight million, three hundred eighty-six thousand, five hundred fifty-two".