30444700945 has 4 divisors (see below), whose sum is σ = 36533641140. Its totient is φ = 24355760752.

The previous prime is 30444700931. The next prime is 30444700967. The reversal of 30444700945 is 54900744403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54900744403 = 367 ⋅149593309.

It can be written as a sum of positive squares in 2 ways, for example, as 12788669569 + 17656031376 = 113087^2 + 132876^2 .

It is a cyclic number.

It is not a de Polignac number, because 30444700945 - 2³¹ = 28297217297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30444700898 and 30444700907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044470090 + ... + 3044470099.

It is an arithmetic number, because the mean of its divisors is an integer number (9133410285).

Almost surely, 2^30444700945 is an apocalyptic number.

It is an amenable number.

30444700945 is a deficient number, since it is larger than the sum of its proper divisors (6088940195).

30444700945 is an equidigital number, since it uses as much as digits as its factorization.

30444700945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088940194.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 30444700945 in words is "thirty billion, four hundred forty-four million, seven hundred thousand, nine hundred forty-five".