30864055811 has 4 divisors (see below), whose sum is σ = 31169640624. Its totient is φ = 30558471000.

The previous prime is 30864055799. The next prime is 30864055837. The reversal of 30864055811 is 11855046803.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30864055811 is a prime.

It is a super-2 number, since 2×30864055811² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30864055861) 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 3 ways as a sum of consecutive naturals, for example, 152792255 + ... + 152792456.

It is an arithmetic number, because the mean of its divisors is an integer number (7792410156).

Almost surely, 2^30864055811 is an apocalyptic number.

30864055811 is a deficient number, since it is larger than the sum of its proper divisors (305584813).

30864055811 is a wasteful number, since it uses less digits than its factorization.

30864055811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305584812.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 30864055811 in words is "thirty billion, eight hundred sixty-four million, fifty-five thousand, eight hundred eleven".