30474786306665 has 16 divisors (see below), whose sum is σ = 37169512036176. Its totient is φ = 23979989088000.

The previous prime is 30474786306623. The next prime is 30474786306677. The reversal of 30474786306665 is 56660368747403.

It can be written as a sum of positive squares in 8 ways, for example, as 4753538028121 + 25721248278544 = 2180261^2 + 5071612^2 .

It is not a de Polignac number, because 30474786306665 - 2²⁰ = 30474785258089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58561115 + ... + 59079215.

It is an arithmetic number, because the mean of its divisors is an integer number (2323094502261).

Almost surely, 2^{30474786306665} is an apocalyptic number.

It is an amenable number.

30474786306665 is a deficient number, since it is larger than the sum of its proper divisors (6694725729511).

30474786306665 is a wasteful number, since it uses less digits than its factorization.

30474786306665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711020.

The product of its (nonzero) digits is 365783040, while the sum is 65.

The spelling of 30474786306665 in words is "thirty trillion, four hundred seventy-four billion, seven hundred eighty-six million, three hundred six thousand, six hundred sixty-five".