51621424114 has 16 divisors (see below), whose sum is σ = 83752605720. Its totient is φ = 23721229440.

The previous prime is 51621424111. The next prime is 51621424133. The reversal of 51621424114 is 41142412615.

It can be written as a sum of positive squares in 4 ways, for example, as 51408760225 + 212663889 = 226735^2 + 14583^2 .

It is not an unprimeable number, because it can be changed into a prime (51621424111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4329067 + ... + 4340974.

Almost surely, 2^51621424114 is an apocalyptic number.

51621424114 is a deficient number, since it is larger than the sum of its proper divisors (32131181606).

51621424114 is a wasteful number, since it uses less digits than its factorization.

51621424114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670285.

The product of its digits is 7680, while the sum is 31.

Adding to 51621424114 its reverse (41142412615), we get a palindrome (92763836729).

The spelling of 51621424114 in words is "fifty-one billion, six hundred twenty-one million, four hundred twenty-four thousand, one hundred fourteen".