818757943147 has 2 divisors, whose sum is σ = 818757943148. Its totient is φ = 818757943146.

The previous prime is 818757943141. The next prime is 818757943169. The reversal of 818757943147 is 741349757818.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-818757943147 is a prime.

It is not a weakly prime, because it can be changed into another prime (818757943141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409378971573 + 409378971574.

It is an arithmetic number, because the mean of its divisors is an integer number (409378971574).

Almost surely, 2^818757943147 is an apocalyptic number.

818757943147 is a deficient number, since it is larger than the sum of its proper divisors (1).

818757943147 is an equidigital number, since it uses as much as digits as its factorization.

818757943147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47416320, while the sum is 64.

The spelling of 818757943147 in words is "eight hundred eighteen billion, seven hundred fifty-seven million, nine hundred forty-three thousand, one hundred forty-seven".