670772873677 has 2 divisors, whose sum is σ = 670772873678. Its totient is φ = 670772873676.

The previous prime is 670772873599. The next prime is 670772873707. The reversal of 670772873677 is 776378277076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665511692521 + 5261181156 = 815789^2 + 72534^2 .

It is a cyclic number.

It is not a de Polignac number, because 670772873677 - 2¹⁵ = 670772840909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670772873077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335386436838 + 335386436839.

It is an arithmetic number, because the mean of its divisors is an integer number (335386436839).

Almost surely, 2^670772873677 is an apocalyptic number.

It is an amenable number.

670772873677 is a deficient number, since it is larger than the sum of its proper divisors (1).

670772873677 is an equidigital number, since it uses as much as digits as its factorization.

670772873677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 203297472, while the sum is 67.

The spelling of 670772873677 in words is "six hundred seventy billion, seven hundred seventy-two million, eight hundred seventy-three thousand, six hundred seventy-seven".