30835968409 has 4 divisors (see below), whose sum is σ = 30941210916. Its totient is φ = 30730725904.

The previous prime is 30835968391. The next prime is 30835968473. The reversal of 30835968409 is 90486953803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90486953803 = 379 ⋅238751857.

It can be written as a sum of positive squares in 2 ways, for example, as 12460810384 + 18375158025 = 111628^2 + 135555^2 .

It is a cyclic number.

It is not a de Polignac number, because 30835968409 - 2¹⁹ = 30835444121 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 30835968409.

It is not an unprimeable number, because it can be changed into a prime (30835968209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52620814 + ... + 52621399.

It is an arithmetic number, because the mean of its divisors is an integer number (7735302729).

Almost surely, 2^30835968409 is an apocalyptic number.

It is an amenable number.

30835968409 is a deficient number, since it is larger than the sum of its proper divisors (105242507).

30835968409 is a wasteful number, since it uses less digits than its factorization.

30835968409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105242506.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 30835968409 in words is "thirty billion, eight hundred thirty-five million, nine hundred sixty-eight thousand, four hundred nine".