51215441424 has 40 divisors (see below), whose sum is σ = 151207494720. Its totient is φ = 14632983168.

The previous prime is 51215441419. The next prime is 51215441441. The reversal of 51215441424 is 42414451215.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 76213119 + ... + 76213790.

It is an arithmetic number, because the mean of its divisors is an integer number (3780187368).

Almost surely, 2^51215441424 is an apocalyptic number.

It is an amenable number.

51215441424 is an abundant number, since it is smaller than the sum of its proper divisors (99992053296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51215441424 is a wasteful number, since it uses less digits than its factorization.

51215441424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152426927 (or 152426921 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

Adding to 51215441424 its reverse (42414451215), we get a palindrome (93629892639).

The spelling of 51215441424 in words is "fifty-one billion, two hundred fifteen million, four hundred forty-one thousand, four hundred twenty-four".