397041448651 has 2 divisors, whose sum is σ = 397041448652. Its totient is φ = 397041448650.

The previous prime is 397041448637. The next prime is 397041448799. The reversal of 397041448651 is 156844140793.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 397041448651 - 2¹¹ = 397041446603 is a prime.

It is not a weakly prime, because it can be changed into another prime (397041448051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198520724325 + 198520724326.

It is an arithmetic number, because the mean of its divisors is an integer number (198520724326).

Almost surely, 2^397041448651 is an apocalyptic number.

397041448651 is a deficient number, since it is larger than the sum of its proper divisors (1).

397041448651 is an equidigital number, since it uses as much as digits as its factorization.

397041448651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 397041448651 in words is "three hundred ninety-seven billion, forty-one million, four hundred forty-eight thousand, six hundred fifty-one".