30038875849 has 4 divisors (see below), whose sum is σ = 31805868564. Its totient is φ = 28271883136.

The previous prime is 30038875843. The next prime is 30038875927. The reversal of 30038875849 is 94857883003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94857883003 = 13 ⋅7296760231.

It can be written as a sum of positive squares in 2 ways, for example, as 14951175625 + 15087700224 = 122275^2 + 122832^2 .

It is a cyclic number.

It is not a de Polignac number, because 30038875849 - 2²⁹ = 29502004937 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 30038875849.

It is not an unprimeable number, because it can be changed into a prime (30038875843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883496332 + ... + 883496365.

It is an arithmetic number, because the mean of its divisors is an integer number (7951467141).

Almost surely, 2^30038875849 is an apocalyptic number.

It is an amenable number.

30038875849 is a deficient number, since it is larger than the sum of its proper divisors (1766992715).

30038875849 is a wasteful number, since it uses less digits than its factorization.

30038875849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766992714.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 30038875849 in words is "thirty billion, thirty-eight million, eight hundred seventy-five thousand, eight hundred forty-nine".