30956000473 has 4 divisors (see below), whose sum is σ = 31380055348. Its totient is φ = 30531945600.

The previous prime is 30956000423. The next prime is 30956000479. The reversal of 30956000473 is 37400065903.

It is the 71829-th star number.

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 11609416009 + 19346584464 = 107747^2 + 139092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30956000473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30956000479) 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, 212027328 + ... + 212027473.

It is an arithmetic number, because the mean of its divisors is an integer number (7845013837).

Almost surely, 2^30956000473 is an apocalyptic number.

It is an amenable number.

30956000473 is a deficient number, since it is larger than the sum of its proper divisors (424054875).

30956000473 is an equidigital number, since it uses as much as digits as its factorization.

30956000473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424054874.

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 30956000473 in words is "thirty billion, nine hundred fifty-six million, four hundred seventy-three", and thus it is an aban number.