51388263143 has 16 divisors (see below), whose sum is σ = 58980129600. Its totient is φ = 43859425536.

The previous prime is 51388263139. The next prime is 51388263191. The reversal of 51388263143 is 34136288315.

It is a cyclic number.

It is not a de Polignac number, because 51388263143 - 2² = 51388263139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51388263094 and 51388263103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51388263103) 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, 1776371 + ... + 1805067.

It is an arithmetic number, because the mean of its divisors is an integer number (3686258100).

Almost surely, 2^51388263143 is an apocalyptic number.

51388263143 is a deficient number, since it is larger than the sum of its proper divisors (7591866457).

51388263143 is a wasteful number, since it uses less digits than its factorization.

51388263143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29786.

The product of its digits is 414720, while the sum is 44.

The spelling of 51388263143 in words is "fifty-one billion, three hundred eighty-eight million, two hundred sixty-three thousand, one hundred forty-three".