51340051021263 has 16 divisors (see below), whose sum is σ = 68801870592000. Its totient is φ = 34052488477920.

The previous prime is 51340051021261. The next prime is 51340051021283. The reversal of 51340051021263 is 36212015004315.

It is not a de Polignac number, because 51340051021263 - 2¹ = 51340051021261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340051021261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6394693 + ... + 11982161.

It is an arithmetic number, because the mean of its divisors is an integer number (4300116912000).

Almost surely, 2^{51340051021263} is an apocalyptic number.

51340051021263 is a deficient number, since it is larger than the sum of its proper divisors (17461819570737).

51340051021263 is a wasteful number, since it uses less digits than its factorization.

51340051021263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603062.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 51340051021263 its reverse (36212015004315), we get a palindrome (87552066025578).

The spelling of 51340051021263 in words is "fifty-one trillion, three hundred forty billion, fifty-one million, twenty-one thousand, two hundred sixty-three".