3850665799801 has 2 divisors, whose sum is σ = 3850665799802. Its totient is φ = 3850665799800.

The previous prime is 3850665799777. The next prime is 3850665799811. The reversal of 3850665799801 is 1089975660583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2135938405225 + 1714727394576 = 1461485^2 + 1309476^2 .

It is a cyclic number.

It is not a de Polignac number, because 3850665799801 - 2²³ = 3850657411193 is a prime.

It is not a weakly prime, because it can be changed into another prime (3850665799811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925332899900 + 1925332899901.

It is an arithmetic number, because the mean of its divisors is an integer number (1925332899901).

Almost surely, 2^{3850665799801} is an apocalyptic number.

It is an amenable number.

3850665799801 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850665799801 is an equidigital number, since it uses as much as digits as its factorization.

3850665799801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97977600, while the sum is 67.

The spelling of 3850665799801 in words is "three trillion, eight hundred fifty billion, six hundred sixty-five million, seven hundred ninety-nine thousand, eight hundred one".