30327765613 has 4 divisors (see below), whose sum is σ = 30328453980. Its totient is φ = 30327077248.

The previous prime is 30327765577. The next prime is 30327765631. The reversal of 30327765613 is 31656772303.

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 15699588804 + 14628176809 = 125298^2 + 120947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30327765613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30327765613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30327765683) 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, 273220 + ... + 367837.

It is an arithmetic number, because the mean of its divisors is an integer number (7582113495).

Almost surely, 2^30327765613 is an apocalyptic number.

It is an amenable number.

30327765613 is a deficient number, since it is larger than the sum of its proper divisors (688367).

30327765613 is an equidigital number, since it uses as much as digits as its factorization.

30327765613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688366.

The product of its (nonzero) digits is 476280, while the sum is 43.

The spelling of 30327765613 in words is "thirty billion, three hundred twenty-seven million, seven hundred sixty-five thousand, six hundred thirteen".