671113552679 has 2 divisors, whose sum is σ = 671113552680. Its totient is φ = 671113552678.

The previous prime is 671113552609. The next prime is 671113552709. The reversal of 671113552679 is 976255311176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671113552679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671113552679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671113552609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335556776339 + 335556776340.

It is an arithmetic number, because the mean of its divisors is an integer number (335556776340).

Almost surely, 2^671113552679 is an apocalyptic number.

671113552679 is a deficient number, since it is larger than the sum of its proper divisors (1).

671113552679 is an equidigital number, since it uses as much as digits as its factorization.

671113552679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 53.

The spelling of 671113552679 in words is "six hundred seventy-one billion, one hundred thirteen million, five hundred fifty-two thousand, six hundred seventy-nine".