671555127773 has 8 divisors (see below), whose sum is σ = 687447338688. Its totient is φ = 655675401024.

The previous prime is 671555127721. The next prime is 671555127869. The reversal of 671555127773 is 377721555176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671555127773 - 2⁶ = 671555127709 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 (671555127673) 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, 3012140 + ... + 3227397.

It is an arithmetic number, because the mean of its divisors is an integer number (85930917336).

Almost surely, 2^671555127773 is an apocalyptic number.

It is an amenable number.

671555127773 is a deficient number, since it is larger than the sum of its proper divisors (15892210915).

671555127773 is a wasteful number, since it uses less digits than its factorization.

671555127773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242083.

The product of its digits is 10804500, while the sum is 56.

The spelling of 671555127773 in words is "six hundred seventy-one billion, five hundred fifty-five million, one hundred twenty-seven thousand, seven hundred seventy-three".