30515539249 has 6 divisors (see below), whose sum is σ = 33043453926. Its totient is φ = 28168189920.

The previous prime is 30515539207. The next prime is 30515539279. The reversal of 30515539249 is 94293551503.

It can be written as a sum of positive squares in 3 ways, for example, as 35617024 + 30479922225 = 5968^2 + 174585^2 .

It is not a de Polignac number, because 30515539249 - 2²¹ = 30513442097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30515539199 and 30515539208.

It is not an unprimeable number, because it can be changed into a prime (30515539279) 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 5 ways as a sum of consecutive naturals, for example, 90282492 + ... + 90282829.

It is an arithmetic number, because the mean of its divisors is an integer number (5507242321).

Almost surely, 2^30515539249 is an apocalyptic number.

It is an amenable number.

30515539249 is a deficient number, since it is larger than the sum of its proper divisors (2527914677).

30515539249 is a wasteful number, since it uses less digits than its factorization.

30515539249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180565347 (or 180565334 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 46.

The spelling of 30515539249 in words is "thirty billion, five hundred fifteen million, five hundred thirty-nine thousand, two hundred forty-nine".