51737536091 has 2 divisors, whose sum is σ = 51737536092. Its totient is φ = 51737536090.

The previous prime is 51737536079. The next prime is 51737536153. The reversal of 51737536091 is 19063573715.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51737536091 is a prime.

It is not a weakly prime, because it can be changed into another prime (51737536021) 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, 25868768045 + 25868768046.

It is an arithmetic number, because the mean of its divisors is an integer number (25868768046).

Almost surely, 2^51737536091 is an apocalyptic number.

51737536091 is a deficient number, since it is larger than the sum of its proper divisors (1).

51737536091 is an equidigital number, since it uses as much as digits as its factorization.

51737536091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 595350, while the sum is 47.

The spelling of 51737536091 in words is "fifty-one billion, seven hundred thirty-seven million, five hundred thirty-six thousand, ninety-one".