51194964833 has 2 divisors, whose sum is σ = 51194964834. Its totient is φ = 51194964832.

The previous prime is 51194964829. The next prime is 51194964869. The reversal of 51194964833 is 33846949115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36916626769 + 14278338064 = 192137^2 + 119492^2 .

It is a cyclic number.

It is not a de Polignac number, because 51194964833 - 2² = 51194964829 is a prime.

It is not a weakly prime, because it can be changed into another prime (51194564833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25597482416 + 25597482417.

It is an arithmetic number, because the mean of its divisors is an integer number (25597482417).

Almost surely, 2^51194964833 is an apocalyptic number.

It is an amenable number.

51194964833 is a deficient number, since it is larger than the sum of its proper divisors (1).

51194964833 is an equidigital number, since it uses as much as digits as its factorization.

51194964833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 53.

The spelling of 51194964833 in words is "fifty-one billion, one hundred ninety-four million, nine hundred sixty-four thousand, eight hundred thirty-three".