671345183251 has 2 divisors, whose sum is σ = 671345183252. Its totient is φ = 671345183250.

The previous prime is 671345183203. The next prime is 671345183381. The reversal of 671345183251 is 152381543176.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671345183251 is a prime.

It is not a weakly prime, because it can be changed into another prime (671345183051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335672591625 + 335672591626.

It is an arithmetic number, because the mean of its divisors is an integer number (335672591626).

Almost surely, 2^671345183251 is an apocalyptic number.

671345183251 is a deficient number, since it is larger than the sum of its proper divisors (1).

671345183251 is an equidigital number, since it uses as much as digits as its factorization.

671345183251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 46.

The spelling of 671345183251 in words is "six hundred seventy-one billion, three hundred forty-five million, one hundred eighty-three thousand, two hundred fifty-one".