671125502671 has 4 divisors (see below), whose sum is σ = 722750541352. Its totient is φ = 619500463992.

The previous prime is 671125502527. The next prime is 671125502687. The reversal of 671125502671 is 176205521176.

671125502671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 671125502671 - 2¹¹ = 671125500623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671122502671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25812519321 + ... + 25812519346.

It is an arithmetic number, because the mean of its divisors is an integer number (180687635338).

Almost surely, 2^671125502671 is an apocalyptic number.

671125502671 is a deficient number, since it is larger than the sum of its proper divisors (51625038681).

671125502671 is a wasteful number, since it uses less digits than its factorization.

671125502671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51625038680.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 671125502671 in words is "six hundred seventy-one billion, one hundred twenty-five million, five hundred two thousand, six hundred seventy-one".