670885186613 has 2 divisors, whose sum is σ = 670885186614. Its totient is φ = 670885186612.

The previous prime is 670885186603. The next prime is 670885186633. The reversal of 670885186613 is 316681588076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 525832370449 + 145052816164 = 725143^2 + 380858^2 .

It is a cyclic number.

It is not a de Polignac number, because 670885186613 - 2¹⁶ = 670885121077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670885186603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335442593306 + 335442593307.

It is an arithmetic number, because the mean of its divisors is an integer number (335442593307).

Almost surely, 2^670885186613 is an apocalyptic number.

It is an amenable number.

670885186613 is a deficient number, since it is larger than the sum of its proper divisors (1).

670885186613 is an equidigital number, since it uses as much as digits as its factorization.

670885186613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 59.

The spelling of 670885186613 in words is "six hundred seventy billion, eight hundred eighty-five million, one hundred eighty-six thousand, six hundred thirteen".