30851985314305 has 4 divisors (see below), whose sum is σ = 37022382377172. Its totient is φ = 24681588251440.

The previous prime is 30851985314303. The next prime is 30851985314323. The reversal of 30851985314305 is 50341358915803.

It is a happy number.

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 11543984750736 + 19308000563569 = 3397644^2 + 4394087^2 .

It is not a de Polignac number, because 30851985314305 - 2¹ = 30851985314303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30851985314303) 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, 3085198531426 + ... + 3085198531435.

It is an arithmetic number, because the mean of its divisors is an integer number (9255595594293).

Almost surely, 2^{30851985314305} is an apocalyptic number.

It is an amenable number.

30851985314305 is a deficient number, since it is larger than the sum of its proper divisors (6170397062867).

30851985314305 is an equidigital number, since it uses as much as digits as its factorization.

30851985314305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6170397062866.

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 30851985314305 in words is "thirty trillion, eight hundred fifty-one billion, nine hundred eighty-five million, three hundred fourteen thousand, three hundred five".