51514341420 has 96 divisors (see below), whose sum is σ = 148184467200. Its totient is φ = 13364064000.

The previous prime is 51514341353. The next prime is 51514341421. The reversal of 51514341420 is 2414341515.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (51514341421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607806 + ... + 687354.

It is an arithmetic number, because the mean of its divisors is an integer number (1543588200).

Almost surely, 2^51514341420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51514341420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74092233600).

51514341420 is an abundant number, since it is smaller than the sum of its proper divisors (96670125780).

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

51514341420 is a wasteful number, since it uses less digits than its factorization.

51514341420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79855 (or 79853 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 51514341420 its reverse (2414341515), we get a palindrome (53928682935).

The spelling of 51514341420 in words is "fifty-one billion, five hundred fourteen million, three hundred forty-one thousand, four hundred twenty".