30493814693 has 4 divisors (see below), whose sum is σ = 30716397420. Its totient is φ = 30271231968.

The previous prime is 30493814669. The next prime is 30493814707. The reversal of 30493814693 is 39641839403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39641839403 = 31 ⋅1278769013.

It can be written as a sum of positive squares in 2 ways, for example, as 25618563364 + 4875251329 = 160058^2 + 69823^2 .

It is a cyclic number.

It is not a de Polignac number, because 30493814693 - 2¹⁶ = 30493749157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30493814093) by changing a digit.

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, 111291158 + ... + 111291431.

It is an arithmetic number, because the mean of its divisors is an integer number (7679099355).

Almost surely, 2^30493814693 is an apocalyptic number.

It is an amenable number.

30493814693 is a deficient number, since it is larger than the sum of its proper divisors (222582727).

30493814693 is a wasteful number, since it uses less digits than its factorization.

30493814693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222582726.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 30493814693 in words is "thirty billion, four hundred ninety-three million, eight hundred fourteen thousand, six hundred ninety-three".