670673703991 has 2 divisors, whose sum is σ = 670673703992. Its totient is φ = 670673703990.

The previous prime is 670673703983. The next prime is 670673704007. The reversal of 670673703991 is 199307376076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670673703991 - 2³ = 670673703983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670673703391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335336851995 + 335336851996.

It is an arithmetic number, because the mean of its divisors is an integer number (335336851996).

Almost surely, 2^670673703991 is an apocalyptic number.

670673703991 is a deficient number, since it is larger than the sum of its proper divisors (1).

670673703991 is an equidigital number, since it uses as much as digits as its factorization.

670673703991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9001692, while the sum is 58.

The spelling of 670673703991 in words is "six hundred seventy billion, six hundred seventy-three million, seven hundred three thousand, nine hundred ninety-one".