51210354036065 has 16 divisors (see below), whose sum is σ = 71864629719168. Its totient is φ = 34299027818496.

The previous prime is 51210354036031. The next prime is 51210354036077. The reversal of 51210354036065 is 56063045301215.

It is not a de Polignac number, because 51210354036065 - 2¹⁰ = 51210354035041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17013405152 + ... + 17013408161.

It is an arithmetic number, because the mean of its divisors is an integer number (4491539357448).

Almost surely, 2^{51210354036065} is an apocalyptic number.

It is an amenable number.

51210354036065 is a deficient number, since it is larger than the sum of its proper divisors (20654275683103).

51210354036065 is a wasteful number, since it uses less digits than its factorization.

51210354036065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34026813368.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 51210354036065 in words is "fifty-one trillion, two hundred ten billion, three hundred fifty-four million, thirty-six thousand, sixty-five".