30597278409 has 12 divisors (see below), whose sum is σ = 44199628356. Its totient is φ = 20396542752.

The previous prime is 30597278389. The next prime is 30597278417. The reversal of 30597278409 is 90487279503.

30597278409 is a `hidden beast` number, since 3 + 0 + 597 + 2 + 7 + 8 + 40 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22897742400 + 7699536009 = 151320^2 + 87747^2 .

It is not a de Polignac number, because 30597278409 - 2¹¹ = 30597276361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30597278449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13054 + ... + 247719.

It is an arithmetic number, because the mean of its divisors is an integer number (3683302363).

Almost surely, 2^30597278409 is an apocalyptic number.

It is an amenable number.

30597278409 is a deficient number, since it is larger than the sum of its proper divisors (13602349947).

30597278409 is a wasteful number, since it uses less digits than its factorization.

30597278409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273816 (or 273813 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 30597278409 in words is "thirty billion, five hundred ninety-seven million, two hundred seventy-eight thousand, four hundred nine".