385197348289 has 4 divisors (see below), whose sum is σ = 414827913556. Its totient is φ = 355566783024.

The previous prime is 385197348271. The next prime is 385197348311. The reversal of 385197348289 is 982843791583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982843791583 = 29 ⋅33891165227.

It can be written as a sum of positive squares in 2 ways, for example, as 175883778225 + 209313570064 = 419385^2 + 457508^2 .

It is a cyclic number.

It is not a de Polignac number, because 385197348289 - 2⁵ = 385197348257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385197348209) 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, 14815282614 + ... + 14815282639.

It is an arithmetic number, because the mean of its divisors is an integer number (103706978389).

Almost surely, 2^385197348289 is an apocalyptic number.

It is an amenable number.

385197348289 is a deficient number, since it is larger than the sum of its proper divisors (29630565267).

385197348289 is a wasteful number, since it uses less digits than its factorization.

385197348289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29630565266.

The product of its digits is 104509440, while the sum is 67.

The spelling of 385197348289 in words is "three hundred eighty-five billion, one hundred ninety-seven million, three hundred forty-eight thousand, two hundred eighty-nine".