385103753209 has 4 divisors (see below), whose sum is σ = 440118575104. Its totient is φ = 330088931316.

The previous prime is 385103753197. The next prime is 385103753297. The reversal of 385103753209 is 902357301583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 902357301583 = 19 ⋅47492489557.

It is a cyclic number.

It is not a de Polignac number, because 385103753209 - 2⁷ = 385103753081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385103753299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27507410937 + ... + 27507410950.

It is an arithmetic number, because the mean of its divisors is an integer number (110029643776).

Almost surely, 2^385103753209 is an apocalyptic number.

It is an amenable number.

385103753209 is a deficient number, since it is larger than the sum of its proper divisors (55014821895).

385103753209 is an equidigital number, since it uses as much as digits as its factorization.

385103753209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55014821894.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 385103753209 in words is "three hundred eighty-five billion, one hundred three million, seven hundred fifty-three thousand, two hundred nine".