51785104846753 has 2 divisors, whose sum is σ = 51785104846754. Its totient is φ = 51785104846752.

The previous prime is 51785104846729. The next prime is 51785104846819. The reversal of 51785104846753 is 35764840158715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30374559961344 + 21410544885409 = 5511312^2 + 4627153^2 .

It is a cyclic number.

It is not a de Polignac number, because 51785104846753 - 2⁵ = 51785104846721 is a prime.

It is a super-2 number, since 2×51785104846753² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51785104841753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25892552423376 + 25892552423377.

It is an arithmetic number, because the mean of its divisors is an integer number (25892552423377).

Almost surely, 2^{51785104846753} is an apocalyptic number.

It is an amenable number.

51785104846753 is a deficient number, since it is larger than the sum of its proper divisors (1).

51785104846753 is an equidigital number, since it uses as much as digits as its factorization.

51785104846753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896000, while the sum is 64.

The spelling of 51785104846753 in words is "fifty-one trillion, seven hundred eighty-five billion, one hundred four million, eight hundred forty-six thousand, seven hundred fifty-three".