51244434211 has 8 divisors (see below), whose sum is σ = 54283752720. Its totient is φ = 48207886848.

The previous prime is 51244434193. The next prime is 51244434239. The reversal of 51244434211 is 11243444215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51244434211 - 2²³ = 51236045603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51244434251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654646 + ... + 728731.

It is an arithmetic number, because the mean of its divisors is an integer number (6785469090).

Almost surely, 2^51244434211 is an apocalyptic number.

51244434211 is a deficient number, since it is larger than the sum of its proper divisors (3039318509).

51244434211 is a wasteful number, since it uses less digits than its factorization.

51244434211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385573.

The product of its digits is 15360, while the sum is 31.

Adding to 51244434211 its reverse (11243444215), we get a palindrome (62487878426).

The spelling of 51244434211 in words is "fifty-one billion, two hundred forty-four million, four hundred thirty-four thousand, two hundred eleven".