30506730406 has 4 divisors (see below), whose sum is σ = 45760095612. Its totient is φ = 15253365202.

The previous prime is 30506730403. The next prime is 30506730407. The reversal of 30506730406 is 60403760503.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30506730403) 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 as a sum of consecutive naturals, namely, 7626682600 + ... + 7626682603.

It is an arithmetic number, because the mean of its divisors is an integer number (11440023903).

Almost surely, 2^30506730406 is an apocalyptic number.

30506730406 is a deficient number, since it is larger than the sum of its proper divisors (15253365206).

30506730406 is a wasteful number, since it uses less digits than its factorization.

30506730406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15253365205.

The product of its (nonzero) digits is 45360, while the sum is 34.

The spelling of 30506730406 in words is "thirty billion, five hundred six million, seven hundred thirty thousand, four hundred six".