671270635268 has 6 divisors (see below), whose sum is σ = 1174723611726. Its totient is φ = 335635317632.

The previous prime is 671270635261. The next prime is 671270635297. The reversal of 671270635268 is 862536072176.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 352702956544 + 318567678724 = 593888^2 + 564418^2 .

It is not an unprimeable number, because it can be changed into a prime (671270635261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83908829405 + ... + 83908829412.

It is an arithmetic number, because the mean of its divisors is an integer number (195787268621).

Almost surely, 2^671270635268 is an apocalyptic number.

It is an amenable number.

671270635268 is a deficient number, since it is larger than the sum of its proper divisors (503452976458).

671270635268 is a wasteful number, since it uses less digits than its factorization.

671270635268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167817658821 (or 167817658819 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 671270635268 in words is "six hundred seventy-one billion, two hundred seventy million, six hundred thirty-five thousand, two hundred sixty-eight".