5178961211 has 2 divisors, whose sum is σ = 5178961212. Its totient is φ = 5178961210.

The previous prime is 5178961187. The next prime is 5178961253. The reversal of 5178961211 is 1121698715.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5178961211 - 2⁶ = 5178961147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5178961811) 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 as a sum of consecutive naturals, namely, 2589480605 + 2589480606.

It is an arithmetic number, because the mean of its divisors is an integer number (2589480606).

Almost surely, 2^5178961211 is an apocalyptic number.

5178961211 is a deficient number, since it is larger than the sum of its proper divisors (1).

5178961211 is an equidigital number, since it uses as much as digits as its factorization.

5178961211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 41.

The square root of 5178961211 is about 71964.9999027305. Note that the first 4 decimals coincide. The cubic root of 5178961211 is about 1730.1385625259.

The spelling of 5178961211 in words is "five billion, one hundred seventy-eight million, nine hundred sixty-one thousand, two hundred eleven".