385046970085 has 4 divisors (see below), whose sum is σ = 462056364108. Its totient is φ = 308037576064.

The previous prime is 385046970047. The next prime is 385046970089. The reversal of 385046970085 is 580079640583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191522642689 + 193524327396 = 437633^2 + 439914^2 .

It is a cyclic number.

It is not a de Polignac number, because 385046970085 - 2¹⁷ = 385046839013 is a prime.

It is a super-2 number, since 2×385046970085² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385046970089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38504697004 + ... + 38504697013.

It is an arithmetic number, because the mean of its divisors is an integer number (115514091027).

Almost surely, 2^385046970085 is an apocalyptic number.

It is an amenable number.

385046970085 is a deficient number, since it is larger than the sum of its proper divisors (77009394023).

385046970085 is an equidigital number, since it uses as much as digits as its factorization.

385046970085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77009394022.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 385046970085 in words is "three hundred eighty-five billion, forty-six million, nine hundred seventy thousand, eighty-five".