51144316063 has 4 divisors (see below), whose sum is σ = 52391738448. Its totient is φ = 49896893680.

The previous prime is 51144316049. The next prime is 51144316129. The reversal of 51144316063 is 36061344115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51144316063 - 2¹³ = 51144307871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144316763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623711131 + ... + 623711212.

It is an arithmetic number, because the mean of its divisors is an integer number (13097934612).

Almost surely, 2^51144316063 is an apocalyptic number.

51144316063 is a deficient number, since it is larger than the sum of its proper divisors (1247422385).

51144316063 is a wasteful number, since it uses less digits than its factorization.

51144316063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247422384.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 51144316063 in words is "fifty-one billion, one hundred forty-four million, three hundred sixteen thousand, sixty-three".