671766870327 has 16 divisors (see below), whose sum is σ = 1025924601600. Its totient is φ = 383011840512.

The previous prime is 671766870293. The next prime is 671766870343. The reversal of 671766870327 is 723078667176.

It is not a de Polignac number, because 671766870327 - 2¹⁹ = 671766346039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671766870367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35612953 + ... + 35631810.

It is an arithmetic number, because the mean of its divisors is an integer number (64120287600).

Almost surely, 2^671766870327 is an apocalyptic number.

671766870327 is a deficient number, since it is larger than the sum of its proper divisors (354157731273).

671766870327 is a wasteful number, since it uses less digits than its factorization.

671766870327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71245222.

The product of its (nonzero) digits is 24893568, while the sum is 60.

The spelling of 671766870327 in words is "six hundred seventy-one billion, seven hundred sixty-six million, eight hundred seventy thousand, three hundred twenty-seven".