299345785957 has 2 divisors, whose sum is σ = 299345785958. Its totient is φ = 299345785956.

The previous prime is 299345785861. The next prime is 299345786021. The reversal of 299345785957 is 759587543992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222355630116 + 76990155841 = 471546^2 + 277471^2 .

It is a cyclic number.

It is not a de Polignac number, because 299345785957 - 2¹⁹ = 299345261669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 299345785957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (299345785757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149672892978 + 149672892979.

It is an arithmetic number, because the mean of its divisors is an integer number (149672892979).

Almost surely, 2^299345785957 is an apocalyptic number.

It is an amenable number.

299345785957 is a deficient number, since it is larger than the sum of its proper divisors (1).

299345785957 is an equidigital number, since it uses as much as digits as its factorization.

299345785957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304000, while the sum is 73.

The spelling of 299345785957 in words is "two hundred ninety-nine billion, three hundred forty-five million, seven hundred eighty-five thousand, nine hundred fifty-seven".