30268868509 has 16 divisors (see below), whose sum is σ = 35272402560. Its totient is φ = 25669288960.

The previous prime is 30268868507. The next prime is 30268868521. The reversal of 30268868509 is 90586886203.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30268868509 - 2¹ = 30268868507 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 30268868509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30268868507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695089 + ... + 737350.

It is an arithmetic number, because the mean of its divisors is an integer number (2204525160).

Almost surely, 2^30268868509 is an apocalyptic number.

It is an amenable number.

30268868509 is a deficient number, since it is larger than the sum of its proper divisors (5003534051).

30268868509 is a wasteful number, since it uses less digits than its factorization.

30268868509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432580.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 30268868509 in words is "thirty billion, two hundred sixty-eight million, eight hundred sixty-eight thousand, five hundred nine".