811008051 has 16 divisors (see below), whose sum is σ = 1236697344. Its totient is φ = 463104864.

The previous prime is 811008047. The next prime is 811008061. The reversal of 811008051 is 150800118.

It is not a de Polignac number, because 811008051 - 2² = 811008047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (811008061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18420 + ... + 44286.

It is an arithmetic number, because the mean of its divisors is an integer number (77293584).

Almost surely, 2^811008051 is an apocalyptic number.

811008051 is a deficient number, since it is larger than the sum of its proper divisors (425689293).

811008051 is a wasteful number, since it uses less digits than its factorization.

811008051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27370.

The product of its (nonzero) digits is 320, while the sum is 24.

The square root of 811008051 is about 28478.2030858690. The cubic root of 811008051 is about 932.5562888681.

Adding to 811008051 its reverse (150800118), we get a palindrome (961808169).

The spelling of 811008051 in words is "eight hundred eleven million, eight thousand, fifty-one".