51273152111284 has 12 divisors (see below), whose sum is σ = 95006134794564. Its totient is φ = 24128542169984.

The previous prime is 51273152111221. The next prime is 51273152111339. The reversal of 51273152111284 is 48211125137215.

It can be written as a sum of positive squares in 2 ways, for example, as 26529710490000 + 24743441621284 = 5150700^2 + 4974278^2 .

It is a super-2 number, since 2×51273152111284² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51273152111284.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377008471339 + ... + 377008471474.

It is an arithmetic number, because the mean of its divisors is an integer number (7917177899547).

Almost surely, 2^{51273152111284} is an apocalyptic number.

It is an amenable number.

51273152111284 is a deficient number, since it is larger than the sum of its proper divisors (43732982683280).

51273152111284 is a wasteful number, since it uses less digits than its factorization.

51273152111284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754016942834 (or 754016942832 counting only the distinct ones).

The product of its digits is 134400, while the sum is 43.

Adding to 51273152111284 its reverse (48211125137215), we get a palindrome (99484277248499).

The spelling of 51273152111284 in words is "fifty-one trillion, two hundred seventy-three billion, one hundred fifty-two million, one hundred eleven thousand, two hundred eighty-four".