30361988065 has 4 divisors (see below), whose sum is σ = 36434385684. Its totient is φ = 24289590448.

The previous prime is 30361988057. The next prime is 30361988071. The reversal of 30361988065 is 56088916303.

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 23419099089 + 6942888976 = 153033^2 + 83324^2 .

It is a cyclic number.

It is not a de Polignac number, because 30361988065 - 2³ = 30361988057 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3036198802 + ... + 3036198811.

It is an arithmetic number, because the mean of its divisors is an integer number (9108596421).

Almost surely, 2^30361988065 is an apocalyptic number.

It is an amenable number.

30361988065 is a deficient number, since it is larger than the sum of its proper divisors (6072397619).

30361988065 is an equidigital number, since it uses as much as digits as its factorization.

30361988065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6072397618.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 30361988065 in words is "thirty billion, three hundred sixty-one million, nine hundred eighty-eight thousand, sixty-five".