51179199289 has 2 divisors, whose sum is σ = 51179199290. Its totient is φ = 51179199288.

The previous prime is 51179199263. The next prime is 51179199319. The reversal of 51179199289 is 98299197115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37377648889 + 13801550400 = 193333^2 + 117480^2 .

It is a cyclic number.

It is not a de Polignac number, because 51179199289 - 2¹⁹ = 51178675001 is a prime.

It is not a weakly prime, because it can be changed into another prime (51179199389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25589599644 + 25589599645.

It is an arithmetic number, because the mean of its divisors is an integer number (25589599645).

Almost surely, 2^51179199289 is an apocalyptic number.

It is an amenable number.

51179199289 is a deficient number, since it is larger than the sum of its proper divisors (1).

51179199289 is an equidigital number, since it uses as much as digits as its factorization.

51179199289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 61.

The spelling of 51179199289 in words is "fifty-one billion, one hundred seventy-nine million, one hundred ninety-nine thousand, two hundred eighty-nine".