30390817065 has 32 divisors (see below), whose sum is σ = 55661675520. Its totient is φ = 13870471104.

The previous prime is 30390817027. The next prime is 30390817069. The reversal of 30390817065 is 56071809303.

It is not a de Polignac number, because 30390817065 - 2⁶ = 30390817001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30390817069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168799 + ... + 298788.

It is an arithmetic number, because the mean of its divisors is an integer number (1739427360).

Almost surely, 2^30390817065 is an apocalyptic number.

30390817065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30390817065 is a deficient number, since it is larger than the sum of its proper divisors (25270858455).

30390817065 is a wasteful number, since it uses less digits than its factorization.

30390817065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468221.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 30390817065 in words is "thirty billion, three hundred ninety million, eight hundred seventeen thousand, sixty-five".