671812877014 has 4 divisors (see below), whose sum is σ = 1007719315524. Its totient is φ = 335906438506.

The previous prime is 671812877011. The next prime is 671812877017. The reversal of 671812877014 is 410778218176.

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

It is an interprime number because it is at equal distance from previous prime (671812877011) and next prime (671812877017).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671812877011) 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 as a sum of consecutive naturals, namely, 167953219252 + ... + 167953219255.

It is an arithmetic number, because the mean of its divisors is an integer number (251929828881).

Almost surely, 2^671812877014 is an apocalyptic number.

671812877014 is a deficient number, since it is larger than the sum of its proper divisors (335906438510).

671812877014 is a wasteful number, since it uses less digits than its factorization.

671812877014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335906438509.

The product of its (nonzero) digits is 1053696, while the sum is 52.

The spelling of 671812877014 in words is "six hundred seventy-one billion, eight hundred twelve million, eight hundred seventy-seven thousand, fourteen".